The angular velocity of a rotating object is 2.1 rad/s. So option A is correct.
It is defined as the rate of change of its angular position, and it is measured in units of radians per second (rad/s).
The angular velocity of a rotating platform can be calculated using the formula: angular velocity = 2 * pi * (frequency of rotation)
Frequency of rotation = 1 / time for one complete rotation = 1 / 3 sec = 0.33 Hz
Therefore, the angular velocity of the platform is 2 * pi * 0.33 Hz = 2.09 rad/s
The answer is closest to A 2.1 rad/s
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The voltage and current at the terminals of the circuit element in Fig 1.5 are zero for t < 0. For f0 , they are v = 80,000f 0; i = 15te-5QQt A, t > 0.a) Find the time when the power delivered to the circuit element is maximum. b) Find the maximum value of power. c) Find the total energy delivered to the circuit element.
Time when the power delivered to the circuit element is maximum is [tex]t = ln(80,000f0/75) / (-5)[/tex]), B) The maximum value of power [tex]12f0 A[/tex],C)The total energy delivered to the circuit element is [tex]E = ∫ P dt = ∫ (80,000f0 x 15te^-5t) dt = 12f0 x (1/e^5) x (1-e^-5t)[/tex]
What is the total energy and maximum value of power delivered to the circuit?
a) To find the time when the power delivered to the circuit element is maximum, we need to find the time when the product of voltage and current is maximum.
Power = voltage x current = [tex]80,000f0 x 15te^-5t A[/tex]
The power will be maximum when the derivative of Power with respect to time is zero.
[tex]dP/dt = 0 = 80,000f0 x 15e^-5t - 75e^-5t A[/tex]
[tex]t = ln(80,000f0/75) / (-5)[/tex]
b) To find the maximum value of power, we can substitute the value of t in the equation of power.
[tex]P = 80,000f0 x 15e^-5(ln(80,000f0/75) / (-5)) A = 12f0 A[/tex]
c) To find the total energy delivered to the circuit element, we can integrate the power with respect to time.
[tex]E = ∫ P dt = ∫ (80,000f0 x 15te^-5t) dt = 12f0 x (1/e^5) x (1-e^-5t)[/tex]
The total energy delivered to the circuit element is[tex]12f0/e^5[/tex]
It's worth noting that this solution assumes that the circuit element is a linear element that follows Ohm's law and Kirchhoff's laws. If the circuit element is nonlinear this solution may not be valid.
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Why must the lamina swing freely when determining the centre of gravity?
By allowing the lamina to swing freely, the object's true weight distribution and the center of gravity can be observed and determined with greater accuracy.
The lamina (such as a flat plate or sheet) must be able to swing freely when determining the center of gravity (also known as the center of mass) for a few reasons:
First, the center of gravity is the point at which the weight of an object is evenly distributed, and the object will be balanced when suspended from that point. In order to determine the center of gravity, the object must be allowed to rotate or move freely, so that its weight distribution can be observed.
Second, if the lamina is not able to swing freely, it would be affected by external forces such as friction or air resistance, which could influence the object's weight distribution and give an inaccurate location of the center of gravity.
Third, if the lamina is not able to swing freely, it would be difficult to observe the object's movement, and therefore it would be difficult to determine the center of gravity.
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Why does the moon appear to be bright from Earth yet appears dark from space?
Answer:
The Moon appears to be bright from Earth because it reflects sunlight and the sunlight is reflected back to Earth, making it visible to us. However, when viewed from space, the Moon appears dark because it does not emit its own light and the sunlight is not reflected back towards the observer in space.
a ball is thrown and follows the parabolic path shown. point q is the highest point on the path and points p and r are the same height above the ground.
Because of freefall, The only acceleration working on the ball is gravity in the parabolic path shown. Thus, Option C is correct.
What is parabolic path?Parabolic motion is a type of projectile motion in which an object is thrown or projected into the air and follows a curved path due to the influence of gravity.
In the case of the diagram, the ball is thrown upwards and follows a parabolic path. Point Q marks the highest point on the path and points P and R are the same height above the ground. This can be explained by the fact that the initial velocity of the ball is insufficient to reach a higher point than Q, so after reaching Q the ball begins to fall back to the ground, travelling the same distance at P and R before it reaches the ground.
The parabolic motion of the ball can be described by the equation s = u ×t + 0.5 × a × t2, where s is the displacement of the ball, u is the initial velocity, t is the time elapsed, and a is the acceleration due to gravity. This equation can also be used to calculate the maximum height that the ball will reach, in this case point Q.
The parabolic motion of the ball can be used to explain the physics behind a variety of scenarios, such as how a ball thrown into the air will move, how a skydiver will fall, and even how a spacecraft can be propelled into outer space. It is a fundamental concept in physics and understanding it can help to explain many of the phenomena we observe in our everyday lives.
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Full question:
(See attachment))
24 (refer to figures 32, 33.) which action can adjust the airplane's weight to maximum gross weight and the cg within limits for takeoff? front seat occupants 425 lb rear seat occupants 300 lb fuel, main tanks 44 gal
9 gallons of fuel can be drained to bring the aircraft's weight and CG into safe ranges for takeoff.
What is maximum gross weight?The maximum weight at which the pilot is permitted to attempt to take off due to structural or other limitations is known as the maximum takeoff weight, maximum gross takeoff weight, or maximum takeoff mass of an aircraft. Gross lift-off mass, or GLOW, is the equivalent phrase for rockets. The maximum weight of a vehicle or trailer, including the maximum load that can be carried while being used on the road, is referred to as the maximum authorised mass (MAM) in the context of driving licenses. This is also referred to as the maximum weight permitted or the gross vehicle weight (GVW).
Here,
The aircraft's weight can be adjusted to its maximum gross weight and its CG can be kept within safe ranges for takeoff by draining 9 gallons of fuel.
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Trent builds a model electric motor. When he connects a battery to the motor, the motor spins through a half rotation and stops. Which is the most likely solution to the problem?
It is due to problem in commutator or split rings that reverse the current in the coil by which the energy armature completes its rotation.
What do you mean rotation?Rotation describes the circular motion of an object around its center. There are different ways things can rotate. energy, in physics, the capacity for doing work. Rotation of the Earthre. A very familiar kind of rotation is when a spherical, three-dimensional object turns around an invisible line inside its center.
What type of movement is rotation?Rotational movement involves moving the bone around its longitudinal axis; energy in the process of transfer from one body to another. this can be movement toward the midline of the body (medial rotation) or away from the midline of the body lateral rotation.
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Define simple machine, and identify 6 types
A simple machine is a device that uses a single applied force to do work against a single load force. Simple machines do not involve the use of electricity or combustion, and are typically used to amplify or change the direction of applied forces.
The six types of simple machines are:
Lever: A bar that pivots around a fixed point, or fulcrum, to amplify or change the direction of applied forces.
Pulley: A grooved wheel with a rope or cable passing over it, used to change the direction of an applied force.
Inclined Plane: A flat surface that is angled, used to reduce the amount of force needed to lift an object.
Wedge: A triangular shape with one sloping side, used to split or lift objects by applying force at the sloping angle.
Screw: A spiral groove that helps convert rotational motion into linear motion.
Wheel and Axle: A cylinder that rotates around a central point (the axle), used to reduce the amount of force needed to move an object.
If a spring-operated gun can shoot a pellet to a maximum height of 100 m on Earth, how high could the pellet rise if fired on the Moon, where g = 1.6 m/s2? A 160m
B 100m
C 610m
D 17m
Answer:
10
if we calculate using the quantity of the moon you see that he was in Paris
if you have a mass of 50 kg and are in a planet where the acceleration of gravity is 5 m/s2, your weight on the planet is
If you have a mass of 50 kg and are on a planet where the acceleration of gravity is 5 m/s^2, your weight on the planet would be 250 N (Newtons)
Weight is the force exerted on an object due to gravity and is equal to the mass of an object multiplied by the acceleration due to gravity.
Weight = mass*gravity
The acceleration due to gravity on this planet = 5[tex]m/s^2[/tex]
The weight of the object with a mass of 50 kg = 50 kg ×5[tex]m/s^2[/tex] = 250 N.
Acceleration due to gravity (g) is the acceleration experienced by an object as a result of the force of gravity acting upon it. It is defined as the rate of change of velocity of an object due to the force of gravity. The acceleration of gravity is a constant, and its value is approximately 9.8 [tex]m/s^2[/tex] on the surface of the Earth.
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Particles Of Charge +65, +48, And −95 ΜC Are Placed In A Line (Figure 1) . The Center One Is L = 60 Cm From Each Of The Others. Part A Calculate The Net Force On The Left Charge Due To The Other Two. Enter A Positive Value If The Force Is Directed To The Right And A Negative Value If The Force Is Directed To The Left. Express Your Answer ToThis problem has been solved!You'll get a detailed solution from a subject matter expert that helps you learn core concepts.See AnswerParticles of charge +65, +48, and −95 μC are placed in a line (Figure 1) . The center one is L = 60 cm from each of the others.no title providedPart ACalculate the net force on the left charge due to the other two. Enter a positive value if the force is directed to the right and a negative value if the force is directed to the left.Express your answer to two significant figures and include the appropriate units.Part BCalculate the net force on the center charge due to the other two. Enter a positive value if the force is directed to the right and a negative value if the force is directed to the left.Part CCalculate the net force on the right charge due to the other two. Enter a positive value if the force is directed to the right and a negative value if the force is directed to the left.
Net force on left charge due to other 2 is -39.41N,Force on charge 2 due to 1 is 192N,Force on charge 3 due to 1 is -152.6N.
What in science is a force?
The word "force" has a specific meaning in science. At this level, calling a force a push or perhaps a pull is entirely appropriate. A strength is not really something an object "has in it" or that it "contains." One thing experiences a force from another. There are both living things and non-living objects in the concept of a force.
What are example and force?
Force is the term used to describe a body's tendency to incorporate the new its state as a result of an external cause. When force is applied, the item can also alter its size, shape, and direction. kicking a ball, pushing and pulling on the door, or kneading dough are a few examples.
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Net force on left charge due to other two charges is -39.41N, force on charge two due to one is 192N, and force on charge three due to one is -152.6N.
What exactly is a force?
Force is an external influence that changes or has the potential to change the motion of an object. Force can be either a push or a pull, and can be measured in newtons. It can be caused by interactions between objects, or the result of an object’s interaction with a field, such as gravity. Force can cause a change in an object’s speed, direction, shape, and/or energy. Examples of forces include friction, tension, gravity, magnetism, and electrical forces. Force can also be thought of as the product of mass and acceleration. In order for an object to move, a force must act upon it.
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Four identical charged particles (Q = +20 micro coulomb) are located on the corners of a rectangle as shown in the figure. The dimensions of the rectangle are L= 50 cm and W = 20cm. Calculate the magnitude and direction of the total electric force exerted on the charge at the lower left corner by the other 3 charges.
The charge deposited in the lower left quadrant will experience an electric force of 98.32 psi. Additionally, the direction is 74.49.
What is a magnitude example?The size of an object is its magnitude. For example, a car moves faster than like a bike in regards to speed. In this instance, the speed differential between both the car and also the bike is higher. It exposes the size or motion of an object in terms of absolute or relative dimensions.
What are magnitude and a vector?A quantity with both a path and a quantity is called a vector. An abundance or a numerical amount of something is referred to as a magnitude. Another vector is displacement amount, which is the separation between a beginning point and an ending location.
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the shear leg derrick is used to haul the 200-kg net of fish onto the dock. determine the compressive force along each of the legs ab and cb and the tension in the winch cable db. assume the force in each leg acts along its axis
each leg's strength With forces of Fab = 2.52 KN, Fcb = 2.52 KN, and Fbd = 3.64 KN, the shear leg derrick is used to raise the 200 kg fish net onto the pier. Do the compression force along each leg calculations.
(db), (ab), and (cb) of the winch cable. In physics, a force is an effect that has the ability to change how an object moves. A mass-containing object's velocity or acceleration can be altered by a force (for example, moving from a condition of rest).
If 0.6667Fab + 0.6667Fcb - 0.9231Fbd = 0, then 0.6667 Fab + 0.6667Fcb - 0.3846 Fbd - 1962 = likewise.
By resolving these three equations, we arrive to the values Fab = 2.52KN, Fcb = 2.52KN, and Fbd = 3.64KN.
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What happens if you move a magnet back and forth inside a coil of wire?
When we move the magnet back and forth inside the coil of the wire, it will produce a voltage.
When a magnet moves into a coil of wire, the magnetic field and flux through the coil change, creating a voltage in the coil according to Faraday's Law. In the example shown below, as the magnet moves into the coil, the galvanometer deflects to the left in response to the increasing magnetic field. When a magnet or coil repeats the reciprocating motion, alternating current is generated. Generators and transformers use electromagnetic induction to generate electricity and change the voltage of current. When the magnet is moved towards the coil, a current is induced in the coil due to the phenomenon of electromagnetic induction. The relative motion between the magnet and coil induces an electromotive force (EMF), which induces a current in the coil.
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tai ran from his home to a position 300 m south of his home in 100 seconds what was his velocity
Velocity = distance / time = 300m / 100s
= 3 m/s
What is Velocity?Velocity is the direction at which an object is moving and serves as a measure of the rate at which its position is changing as seen from a specific point of view and as measured by a specific unit of time (for example, 60 km/h northbound).
A physical vector quantity called velocity must have both a magnitude and a direction in order to be defined.
Speed is the scalar absolute value (magnitude) of velocity; it is a coherent derived unit whose quantity is measured in metres per second (m/s or m/s1) in the SI (metric system).
Therefore, Velocity = distance / time = 300m / 100s
= 3 m/s
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the specialty of an athlete on the women's track team is the pole vault. she has a mass of 60 kg and her approach speed is 8.7 m/s. when she is directly above the bar, her speed is 1.4 m/s. neglecting air resistance and any energy absorbed by the pole, determine the amount(in m) she has raised herself as she crosses the bar.
The height(in m) she has raised herself as she crosses the bar with initial speed of 8.7m/s is found to be 3.76m
What does energy conservation mean?A fundamental law of physics and chemistry asserts that despite internal changes, the overall energy of an isolated system remains unchanged. It is the fundamental premise of the first law of thermodynamics, which is most frequently stated as "energy cannot be created or destroyed."
Mass of the women => 60Kg
V1 => 8.7 m/s
v2=> 1.4m/s
Conservation of energy:
Kinetic energy 1 = Kinetic energy 2 + Potential energy
1/2 m v1^2 = 1/2 m V2^2 + mgh
V1^2 -v2^2/2 xg => h => height she raised
h=> 3.76m
What are the three laws of energy conservation?There are three essential quantities in mechanics which are conserved. They are power, forward motion, and angular momentum.
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Question:
A 3-kg plastic tank that has a volume of 0.2
m
3
is filled with liquid water. Assuming the density of water is 1000
k
g
/
m
3
, determine the weight of the combined system
Density:
The density of a material provides the quantity for its mass per unit volume. Knowing the density of a material, we can obtain the total mass it has by multiplying the volume, V, by the density, rho
, or m
=
V
×
rho
.
The weight of the combined system is 203 kg.
What is mean by density?
The density is the ratio of mass to volume. It is typically expressed as kilograms per cubic meter (kg/m3) and is used to quantify the physical properties of different materials.
Density is an important property as it affects the material’s ability to resist changes in pressure, temperature, and other physical forces.
It is also used to determine the composition of certain substances, such as the amount of salt in a solution.
Density is an intrinsic property of a material and is not affected by the size or shape of the sample being measured.
Density can be determined by measuring the mass of an object and dividing it by its volume. The density of a substance can be compared to that of other substances to determine relative densities.
Density is used in many areas of science such as physics, chemistry, engineering, and geology.
Density is also important to the study of materials, as it can be used to identify and characterize them. Density is an important parameter when considering the structural and mechanical properties of materials.
Step 1: Calculate the mass of water in the tank.
Mass of water = Volume of water x Density of water
Mass of water = 0.2m^3 x 1000 kg/m^3
Mass of water = 200 kg
Step 2: Calculate the weight of the combined system.
Weight of the combined system = Mass of tank + Mass of water
Weight of the combined system = 3 kg + 200 kg
Weight of the combined system = 203 kg
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12. What is the initial height of a 2.75-kg baseball that was thrown at velocity of 7.9 m/s and
was caught with a glove at 11.8 m/s at a height of 1.25 m?
The initial height of a 2.75-kg baseball that was thrown at velocity of 7.9 m/s 21.725.
What is the initial height?To emphasise the relief-like structure in a processed representation, the object's initial height representation is treated utilising height alterations.
h = v 0 y 2 2 g . h = v 0 y 2 2 g . This equation, which solely depends on the vertical component of the starting velocity, specifies the maximum height of a projectile above its launch site.
The formula is expressed as v 2 u 2 =2as, where v is the final velocity, u is the beginning velocity, an is the acceleration due to gravity, 9 m/s 2 and s = h is the height travelled.
The information above allows us to locate you. At the top of the journey in this instance, v equals 0.
2.75 * 7.9 m/s . = 21.725.
Consequently, the ball's starting speed was 10 m/s.
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which of the following quantities is at a maximum when an object in simple harmonic motion is at its maximum displacement? A) Speed B) Acceleration C) Kinetic Energy D) Frequency E) Both A & C are valid
The following quantity is at maximum when an object in simple harmonic motion is at its maximum displacement : B) Acceleration. Hence, B) Acceleration is the correct answer.
What is meant by simple harmonic motion?In physics, simple harmonic motion is a repetitive movement back and forth through an equilibrium, or central position, so that the maximum displacement on one side of this position is equal to the maximum displacement on other side.
Simple harmonic motion is defined as periodic motion of a point along straight line, such that acceleration is always towards a fixed point in that line and is proportional to the distance from that point.
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Hot coffee is poured into a mug. It slowly cools, releasing heat to the environment. If we consider the coffee to be the system, which of the following are part of the surroundings? Select all that apply.
O The table underneath the mug O The mug O The air in the room
If we consider the coffee to be the system, the mug, the air in the room, and the table underneath the mug are the part of the surroundings.
What is heat?Heat is the transfer of kinetic energy from an energy source to a medium or an object, or the opposite. The three potential mechanisms for this energy transfer are radiation, conduction, and convection.
Small particles are always moving in gases, liquids, and solids. A type of energy known as thermal energy is created by the motion of particles and is a part of all matter.
Between systems or objects with various temperatures, energy is transferred in the form of heat (flowing from the high-temperature system to the low-temperature system). Likewise called thermal energy or heat energy.
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more than one cyclf of the cosin wave is shown. three of the statements are true, and one is flase. which statement is falsse
From given statements for cycle of the cosine wave, the false statement is [tex]$ \mathrm{cos\frac{\pi}{6} = cos\frac{7\pi}{6} }[/tex].
What is an amplitude?An amplitude is a measure of the strength or magnitude of a signal, such as an electrical voltage, sound wave, or light wave. It is typically measured in decibels (dB), which is a logarithmic scale. Amplitude is usually related to the intensity or volume of a signal.
This is because a single cycle of a cosine wave is a single period of the wave, and a single period of the wave is usually defined as the time between two consecutive peaks or two consecutive troughs. In this case, there are more than two consecutive peaks or troughs, so it cannot be said that a single cycle of the cosine wave is shown.
[tex]$ \mathrm{cos\frac{\pi}{6} = cos\frac{7\pi}{6} }[/tex] is a false statement as the variables can be factored out and we are left with 1 and 7
As
1 ≠ 7
[tex]$ \mathrm{cos\frac{\pi}{6} = cos\frac{7\pi}{6} }[/tex] is a false statement.
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Complete question:
Draw two lowest-order Feynman diagrams for scattering of an electron neutrino by an electron
A fundamental particle with no electric charge and a spin of one-half is called an electron neutrino (v).
Explain about the electron neutrino?The subatomic particle known as a neutrino resembles an electron in many ways, but it differs in that it lacks an electrical charge and has a very small mass that may even be zero. One of the cosmological particles with the highest density is the neutrino. However, they are exceedingly difficult to find because they barely interact with matter.
Small, almost massless particles known as neutrinos move at speeds close to light. They are phenomenally common in the universe and can move through lead as readily as we do through air. They are the product of intense astronomical events like exploding stars and gamma ray bursts.
A flat recoil energy spectrum is the result of monoenergetic electron neutrinos scattering from electrons.
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removing heat will lower the ___, causing the particles of the reactants to slow down, resulting in less frequent collisons
Removing heat will lower the temperature, causing the particles of the reactants to slow down, resulting in less frequent collisions.
Give a short note on temperature?The temperature of a system is a measure of the average kinetic energy of the particles that make up the system. As the temperature decreases, the kinetic energy of the particles decreases, and their movement slows down. In a chemical reaction, the reactant particles collide with each other in order to react. The more frequently and forcefully they collide, the more likely they are to react. So if the temperature is lowered, the rate of the chemical reaction will decrease because there will be fewer successful collisions between the reactant particles.
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the velocities and masses of four objects are shown. which one of the following is the has the inertia of the objects arranged from least to greatest ?
An object's resistance to changes in motion is measured by inertia. An object's inertia increases with its mass.
What are the objects having inertia from least to greatest?In order to arrange the inertia of the four objects shown from least to greatest, we must first determine the mass of each object.Object A has a velocity of 10 m/s and a mass of 5 kg.Object B has a velocity of 15 m/s and a mass of 10 kg.Object C has a velocity of 20 m/s and a mass of 20 kg.Object D has a velocity of 25 m/s and a mass of 15 kg.From the information provided, we can see that the masses of the objects are:Object A: 5 kgObject B: 10 kgObject C: 20 kgObject D: 15 kgTherefore, the inertia of the objects arranged from least to greatest is:Object A: 5 kgObject D: 15 kgObject B: 10 kgObject C: 20 kgInertia is directly proportional to the mass of an object, so the more massive an object is, the greater its inertia.To learn more about inertia refer:
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In order to arrange the inertia of the four objects shown from least to greatest, we must first determine the mass of each object.
Object A has a velocity of 10 m/s and a mass of 5 kg.
Object B has a velocity of 15 m/s and a mass of 10 kg.
Object C has a velocity of 20 m/s and a mass of 20 kg.
Object D has a velocity of 25 m/s and a mass of 15 kg.
From the information provided, we can see that the masses of the objects are:
Object A: 5 kg
Object B: 10 kg
Object C: 20 kg
Object D: 15 kg
Therefore, the inertia of the objects arranged from least to greatest is:
Object A: 5 kg
Object D: 15 kg
Object B: 10 kg
Object C: 20 kg
Inertia is directly proportional to the mass of an object, so the more massive an object is, the greater its inertia.
What, in layman's terms, is inertia?A body's inherent property of inertia makes it resistant to any force that would alter its motion. Acceleration could be caused by opposing forces acting on a still and moving body.
What exactly is motion inertia?Motion inertia: The fundamental property that a body has to resist any change in its motion is called inertia of motion. In other words, inertia of motion is when the body doesn't want to change its motion but wants to stay in its current state.
What motion law is inertia?Inertia refers to a body's ability to remain stationary or in motion at a constant speed. The "law of inertia" is a common name for Newton's first law.
Question incomplete:The velocities and masses of four objects are shown. Which object has the greatest inertia?
A 5kg v=2m/s
B 3 kg v=3m/s
C 4kg → v=1m/s
D 10 kg v=0m/s
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Consider Earth to be stationary, and the moon as orbiting Earth in a circle of radius R. If the masses of Earth and the Moon are ME and Mm, respectively, which of the following best represents the total mechanical energy of the Earth-Moon system?
Total mechanical energy of the Earth-Moon system=[tex]-\frac{GM_{e} M_{m}}{2R}[/tex]
Keeping in mind Kepler's first law, the planets orbit the Sun in elliptical fashion. This implies that as a planet orbits the Sun, the separation between the centres of masses, r, will change. As r varies, this causes a change in the planet's gravitational potential energy.The system's overall mechanical energy is crucially stable throughout its orbit. A planet's gravitational potential energy will drop as it orbits in a position close to the Sun, but its velocity and kinetic energy will grow. The system's overall mechanical energy is always constant because the increase in kinetic energy balances off the system's loss in gravitational potential energy.
Total potential energy of earth and moon=[tex]-\frac{GM_{e} M_{m}}{R}[/tex]
Velocity of moon=[tex]\sqrt\frac{GM_{e} }{R}[/tex]
Kinetic energy of moon=[tex]\frac{1}{2} M_{m} v^{2}[/tex]=[tex]\frac{1}{2} \frac{GM_{e} M_{m}}{R}[/tex]
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A bullet of mass mb is fired horizontally with speed vi at a wooden block of mass mw resting on a frictionless table. The bullet hits the block and becomes completely embedded within it. After the bullet has come to rest. Part A Which of the following best describes this collision? perfectly elastic partially inelastic perfectly inelastic Part B Which of the following quantities, if any, are conserved during this collision? kinetic energy only momentum only kinetic energy and momentum neither momentum nor kinetic energy. Part C:
What is the speed of the block/bullet system after the collision?
Express your answer in terms of vi , mw , and mb . vf = ?
Both kinetic energy and momentum is conserved in this hit since it is perfectly elastic. Vf = mV + M0 = (m + M)v is the speed of the block/bullet system after the contact.
In physics, an elastic collision is a collision between two bodies in which the total kinetic energy remains constant. In an ideal, elastic collision, there is no net conversion of kinetic energy into heat, noise, or potential energy. In physics, kinetic energy (KE) is the energy that an object has as a result of its motion. Both kinetic energy and momentum are conserved in this hit since it is completely inelastic. Vf = mV + M0 = (m + M)v is the speed of the block/bullet system after the contact. It is defined as the effort necessary to move a mass-based body from rest to the given velocity. in kinematics and everyday usage.
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given that the moon subtends at an angle of about half a degree in the sky, estimate its distance from earth
Distance of moon from the earth will be around 384,400 Kilometers (239,000 miles) .
Elaborate in detail.The angular size of the Moon in the sky, which is around half a degree, can be used to determine the distance to the Moon. With this knowledge and knowledge that the Moon's diameter is approximately 3,476 kilometers, we can apply the following formula to determine the angular size: Distance equals (Angular size / 2) tan((Moon diameter / 2)). This gives us a measurement of 384,400 kilometers (239,000 miles) as the distance between Earth and the Moon.
It's crucial to keep in mind that this is only an estimate, and the distance could change based on where the Moon is in its orbit around the Earth. It's also important to note that this distance is an average and that it varies over the month as a result of the Moon's eccentric orbit.
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tesla is building a car battery factory in nevada to drastically increase its production capacity from where it is now. since the factory has not opened, tesla is .
Tesla is constructing a vehicle battery facility in Nevada to significantly enhance its current production capability. Since the facility has not yet begun operations, Tesla is expanding its manufacturing potential.
All the electrical parts of your automobile are powered by a surge of electricity from the car battery. We're talking about a sizable duty here. Your car won't start without a battery, as you may have discovered.
Let's see how that potent tiny box functions:
Your automobile is started by a chemical reaction: Your battery delivers voltage to the starter, converting chemical energy into the electrical energy required to operate your automobile.
Consistently maintain the electric current: In addition to supplying the power needed to start your automobile, your battery also maintains a stable voltage, which is what is needed to keep your engine running. On the battery, a lot depends. Think of it as the "small box that could."
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in which of the following situations is the gravitational force the dominant force? select two answers.
The gravitational force is the predominant force in the following circumstances:
1. When the moon orbits the Earth
2. When an asteroid orbits the Sun
What is gravitational force?Any two mass-containing objects are attracted each other by the invisible gravitational force. It is the weakest of the four fundamental forces of nature and is responsible for the orbits of planets around the Sun as well as the motion of galaxies. This force is inversely proportional to the square of the distance between the two objects, and it is proportional to the product of their masses. Isaac Newton was the first to describe gravity mathematically and proposed that it was a universal force. This force is responsible for keeping objects on the ground, and it is what causes objects to fall when they are dropped.
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5. liquid of some density fills a cylinder of base area a and height h. a) using the symbols provided, state the mass of the cylinder. [ 2 ] b) using your answer from a), show a formula for the pressure exerted on the base of the cylinder. [ 2 ]
Pressure in a liquid with constant density is given by the equations: p 0 = g h p = p 0 + g h. Consequently, pressure on the fluid at a depth. pressure difference = 5886 pa Area=5886*0.050 = 294 N
What does "pressure in a fluid" mean?The power per unit area is measured by fluid pressure. Altitude, velocity, or pressures in a confined container can all result in fluid pressure. A liquid has no fixed shape, hence its pressure is uniform throughout.
14)
: Pressure= force area
Force is weight of liquid = mass * gr
Area = A
O pressure = pgh
Step: 3
calculated above pressure P =pg P = pg(h₂ - h₁)
1,000 × 9.81 × (0.8 -0.2)
= 5,886.00
Pressure difference = 5886 pa
What results in fluid pressure?Similar to the air on the inside of a tire, all liquids exert pressure. Fluid particles constantly and randomly move in all directions. The particles continue to collide with one another and with anything else in their path as they proceed.the pressure difference corresponds to pressure boy puts on platform which is equal to boy's weight divided by area.
Weight = pressure * Area
=5886*0.050 = 294 N
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which of the following best describes the movement of an electron after it is ejected from the cathode?
Charged particles accelerate in an electric field. Electrons begin with a velocity that increases as they approach the anode from the cathode through the vacuum.
Cathodes come from cations (positively charged ions) and anodes come from anions (negatively charged ions). In devices that use electricity, the cathode is the negatively charged electrode. Thomson showed that cathode rays consist of hitherto unknown negatively charged particles (later called electrons). To display images on a screen, a cathode ray tube (CRT) uses a focused electron beam that is deflected by an electric or magnetic field. An anode is a negative or reducing electrode that donates electrons to an external circuit and oxidizes during an electrochemical reaction. A cathode is a positive or oxidizing electrode that receives electrons from an external circuit and is reduced during an electrochemical reaction.
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