The goose will take 8.55 hours to travel 550 km at their average speed of 64.3km/h.
The goose average speed is around 40 mph or 64.3 km/h, but in good weather and wind conditions this speed can go up to 70 mph or 112 km/h
Considering the formula:
x = v.t
were x=space, v=speed and t= time. Clearing the equation, to find the hours of flight:
t = x/v = 550km / 64.3km/h = 8.55 hours
Average speed is a useful concept in many fields, including physics, engineering, and transportation. It can be used to calculate travel times, estimate fuel consumption, and analyze the performance of machines and vehicles. However, it is important to note that average speed does not take into account changes in direction or acceleration, which can affect the overall performance of an object.
Average speed is a measure of how quickly an object moves over a certain distance. It is defined as the total distance traveled divided by the time it takes to travel that distance. The units of average speed are usually expressed as distance per unit time, such as kilometers per hour, miles per hour, or meters per second.
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An object slides at constant speed on the frictionless surface. What forces act on the object? What work is done by each force?
There are two main forces acting on an object sliding at a constant speed on a frictionless surface: gravity and the normal force. No force happens in the direction of displacement of the object because the object is sliding at a constant speed.
Gravity is the force that pulls the object downward, while normal force is the force that pushes the object upward to counteract gravity. Since the object is sliding at a constant speed, these two forces are equal and opposite, which means that they cancel each other out. As a result, there is no net force acting on the object, and therefore no work is being done by either force.
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When should the power switch be in the off position? Check all that app
When reading about how to build the circuits, while building the circuits.
What is Power in off position?The power button is a round or square button that powers an electronic device on and off. Nearly all electronic devices have power buttons or power switches.
A hard power button is mechanical—you can feel a click when pressed and usually see a difference in depth when the switch is on versus when it's not. A soft power button, which is much more common, is electrical and appears the same when the device is on and off.
Some older devices have a power switch that accomplishes the same thing as a hard power button. A flip of the switch in one direction turns the device on, and a flip in the other turns it off.
Therefore, When reading about how to build the circuits, while building the circuits.
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Which two types of energy does an apple falling to the ground have?
A. Nuclear energy
B. Kinetic energy
C. Sound energy
D. Elastic energy
E. Potential energy
Answer:
kinetic and I think sound energy
Answer:
kinetic energy
Explanation:
An apple falling to the ground has both potential energy and kinetic energy. As the apple falls, its potential energy is converted into kinetic energy, which is the energy an object has due to its motion. The apple gains kinetic energy as it falls and its velocity increases, and at the moment it reaches the ground, all of its potential energy has been converted into kinetic energy.
ALLEN
Suppose you have two metal cubes, one made of iron and one made of aluminum. You transfer the same amount of heat Q to each of them. Which cube will have the higher final temperature, given they have the same masses and initial temperatures?
a. Iron Cube
b.
Aluminum Cube
2. Suppose you place an ice cube into a small cup of hot water and it melts completely. What happens to the temperature of the water in the cup?
Stays the same
Increases
Decreases
3.Suppose you place an ice cube into a small cup of hot water and it melts completely. What happens to the temperature of the ice in the cup?
Stays the same
Increases
Decreases
Heat and temperature are fundamental concepts in thermodynamics and are often used interchangeably in everyday language, but they have distinct scientific meanings.
Which cube will have the higher final temperature, given they have the same masses and initial temperatures?According to question:
1. The final temperature of the iron cube will be lower than that of the aluminum cube. This is so because aluminum has a lower specific heat capacity than iron. The quantity of heat energy needed to raise a substance's temperature by one degree Celsius is referred to as its specific heat capacity. As a result, the aluminum cube will heat up more quickly than the iron cube for a given amount of heat Q applied to either cube.
2. Water in the cup will remain at the same temperature. A melting ice cube overcomes the latent heat of fusion by absorbing heat energy from the water in the cup (the heat required to change the state of a substance from solid to liquid). However, because this heat energy is being utilized to dislodge the intermolecular interactions holding the ice molecules together rather than to raise the water's temperature, the water does not become hotter as a result.
3. The ice in the cup maintains its original temperature. The ice cube melts when it is submerged in hot water because it absorbs heat energy from the liquid. The temperature of the ice stays constant at 0 degrees Celsius until it has entirely melted, but because it is originally at 0 degrees Celsius, the absorbed heat energy simply serves to overcome the latent heat of fusion.
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the rest energy of a proton is approximately 938.27mev. if its kinetic energy is also 938.27 mev, find (a) its momentum, and (b) its speed.
(a) Proton has a momentum of 1305.7 MeV/c, and (b) Its speed is 0.99997 the speed of light.
The total energy of a particle is given by the sum of its rest energy and kinetic energy, as described by the equation:
E = mc² + (1/2)mv²
here,
E is total energy,
m is mass of the particle,
c is speed of light, and
v is velocity of the particle.
(a) To find the momentum of the proton:-
E² = (mc²)² + (pc)²
here,
p is momentum of the particle.
Making this:-
p = √[E² - (mc²)²] / c
Putting in values for rest energy and kinetic energy of proton:-
=> E
= 938.27 MeV + 938.27 MeV
= 1876.54 MeV
=> m
= 1.007276 u * (931.5 MeV/c²/u)
= 938.03 MeV/c²
=> p
= √[(1876.54 MeV)² - (938.03 MeV/c²)²] / c
= 1305.7 MeV/c
Therefore, the momentum of the proton is 1305.7 MeV/c.
(b) To find the speed of the proton, we can rearrange the equation for the total energy:-
v = c * √[1 - (mc² / E)²]
Putting values for rest energy and kinetic energy of proton:-
=> v
= c * √[1 - (938.03 MeV/c² / 938.27 MeV)²]
= 0.99997c
Therefore, the speed of the proton is 0.99997 times the speed of light.
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A simple circuit consists of a battery, a light bulb, a capacitor, a switch, and some wire. When the switch is turned on, the charges move around the circuit, charging the capacitor. Which of the following would be signs that this should be considered a closed system thermodynamically?
I Electrons are lost from the system.
II The light bulb gives off light.
III The wire heats up with the passage of current.
II and III only
I and III only
I and II only
II only
Only II and III should be regarded as closed thermodynamic systems, which implies that the wire heats up as current flows through it and the light bulb emits light.
Which of the following will occur when a light bulb is connected in series to a battery and a capacitor?When a capacitor is added to a circuit that also includes a light bulb and a battery, the capacitor will initially charge up and the circuit will have a nonzero current while this charging is taking place, causing the light bulb to illuminate.
What occurs if the bulb battery and wire are connected in the proper direction?After passing through a device like a lamp, the electricity is released through a wire or another conductor.
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Only second question. Thanks
what is the magnitude of the electric field at the point?
The amount of the electric field (E) produced by a point charge with a charge of magnitude Q at a point r away from the point charge is determined by the equation E = kQ/r2.
What exactly is the electric field?Any sort of charge causes an electric field to be associated to a location in space. The strength and direction of the electric field are expressed by the value of E, sometimes referred to as the electric field strength, electric field intensity, or simply the electric field.
What does an electric field look like?The electric field is the region of space around an electrically charged particle or object where the charge body feels force. Examples include the creation of electric fields by charges.
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assume that the particle in the picture is a proton. if an electron is projected at point 1 with the same velocity v, it will not follow the same path as the proton, unless the magnetic field is adjusted. explain how the magnitude and direction of the field must be changed.
Since the electron has a smaller mass than the proton, it will experience a larger deflection due to the same magnetic field. Increasing the magnitude of the field compensates for this and ensures that the electron follows a circular path with the same radius as the proton.
Reversing the direction of the magnetic field is necessary because the Lorentz force on the electron is in the opposite direction to that on the proton due to its negative charge. By changing the direction of the field, the force on the electron will be in the same direction as the force on the proton, allowing it to follow the same circular path.
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the work done to compress a gas is 74 j. as a result, 26 j of heat is given by the system to the surroundings. what is the change in the internal energy of the gas?
The change in the internal energy of the gas is 100 J and this calculation assumes that the system is closed and no other forms of energy are involved.
The change in the internal energy of a system can be calculated using the First Law of Thermodynamics: ΔU = Q - W where ΔU is the change in internal energy of the system, Q is the heat added to the system, and W is the work done by the system. In this case, the work is done on the system (compressing the gas), so W is negative.
Given that the work done to compress the gas is 74 J and 26 J of heat is given by the system to the surroundings, we can substitute these values into the equation to get:
ΔU = Q - W
ΔU = 26 J - (-74 J)
ΔU = 26 J + 74 J
ΔU = 100 J
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When a car’s velocity is positive and its acceleration is also positive what is happening to the car’s overall motion?
When a car's velocity is positive and its acceleration is also positive, the car's overall motion is speeding up in a forward direction.
Velocity is the measure of an object's speed in a specific direction, while acceleration is the measure of how quickly an object's velocity changes over time. So, if both the velocity and acceleration are positive, the car's speed is increasing in the forward direction. This means that the car is moving faster and faster in a forward direction.
Likewise, it can be said that the automobile develops an accelerated movement.
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1.a bone, which is 35cm long, has a radius of 2.25 cm. a twisting torque of 2.75 nm is applied to the bone. find the angle through which the bone twists.
The bone twists at an estimated angle of 0.000025 radians.
The scenario in the question involves applying a twisting torque of 2.75 nm on a bone that has a length of 35 cm and a radius of 2.25 cm. T = Fr, where T is the torque, F is the force, and r is the distance from the axis of rotation, gives the torque on the bone. The formula = T/(GJ), where is the angle of twist, T is the torque, G is the bone's shear modulus, and J is its polar moment of inertia, can be used to determine the angle through which the bone twists.
J = r4/2 can be used to get the polar moment of inertia, assuming the bone is a cylindrical rod.
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how many circuit courts of appeal are in the federal system?
12 regional circuits courts of appeal are in the federal system .
There are 13 appellate courts that sit below theU.S. Supreme Court, and they're called theU.S. Courts of prayers. The 94 civil judicial sections are organized into 12 indigenous circuits, each of which has a court of prayers. The appellate court’s task is to determine whether or not the law was applied rightly in the trial court. Appeals courts correspond of three judges and don't use a jury.
A court of prayers hears challenges to quarter court opinions from courts located within its circuit, as well as prayers from opinions of civil executive agencies.
In addition, the Court of prayers for the Federal Circuit has civil governance to hear prayers in technical cases, similar as those involving patent laws, and cases decided by theU.S. Court of International Trade and theU.S. Court of Federal Claims.
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5. What is the momentum of a 0.05 kg golf ball moving at 240 m/s?
Answer:
12 kg m/s.
Explanation:
The momentum of an object is equal to its mass times its velocity. In this case, the mass of the golf ball is 0.05 kg and its velocity is 240 m/s, so the momentum of the golf ball is:
0.05 kg * 240 m/s = 12 kg m/s
So, the momentum of the golf ball moving at 240 m/s is 12 kg m/s.
If a force of unknown magnitude acts on a 10 kg box resting on a frictionless horizontal surface and changes its speed to 40 m/s in 5 s, then the acceleration of the box will be
Answer:
The box has a magnitude of 80 N
Explanation:
The acceleration of the box can be calculated as follows:
a = (v_f - v_i) / t
where
v_f = 40 m/s (final velocity)
v_i = 0 m/s (initial velocity)
t = 5 s (time)
a = (40 - 0) / 5
a = 8 m/s^2
So, the acceleration of the box is 8 m/s^2. This acceleration can be caused by the force acting on the box, which can be found using the equation:
F = m * a
where
m = 10 kg (mass of the box)
F = 10 * 8
F = 80 N (Newton)
So, the force acting on the box has a magnitude of 80 N.
Identify is work is done in the following cases : a) A physics student works tirelessly on this homework assignment b) An elevator takes you from the 1st to the 3rd floor of Suncoast, and returns to the 1st floor . ) Link pulls a block 10 m across the floor of a temple at constant speed . d) A guy pushes the wall with all his strength . e) A student picks up a textbook from the ground .
In each of the following cases, work is done as follows:
What is work?
Work is a term used in physics to describe the transfer of energy from one system to another. Work is done when a force is applied to an object, causing it to move a certain distance in the direction of the force.
a) A physics student works tirelessly on this homework assignment: No work is done in this scenario as work is defined as the transfer of energy from one system to another. Writing a homework assignment does not involve the transfer of energy from one system to another.
b) An elevator takes you from the 1st to the 3rd floor of Suncoast, and returns to the 1st floor: Work is done in this scenario as the elevator moves against the force of gravity, lifting the people and its own weight from the 1st to the 3rd floor, and then back to the 1st floor.
c) A link pulls a block 10 m across the floor of a temple at constant speed: Work is done in this scenario as the link exerts a force on the block, causing it to move in the direction of the force, covering a distance of 10 m.
d) A guy pushes the wall with all his strength: No work is done in this scenario as work is defined as the transfer of energy from one system to another. Pushing the wall does not result in the transfer of energy from one system to another, and the wall does not move.
e) A student picks up a textbook from the ground: Work is done in this scenario as the student lifts the textbook against the force of gravity, causing the textbook to gain potential energy.
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Water is pumped from a large reservoir to a point 20 m higher than the reservoir.
Calculate the pump head if 0.01 m3/s flows through a 0.15 m diameter pipe and the
total frictional head loss is given to be 35^2/2g?
The pump head is -42.065 m
Since the pump head is negative, the pump is unable to push the water to the height of 20 m, and additional work must be done to overcome the frictional losses in the pipe.
How The Pump Head Calculation Was DoneThe pump head is equal to the total head minus the frictional head loss. The total head can be calculated as follows:
h_total = h_static + h_dynamic
where h_static is the static head, which is equal to the difference in height between the reservoir and the point 20 m higher, and h_dynamic is the dynamic head, which is a measure of the pressure generated by the flow of water.
h_static = 20 m
To calculate the dynamic head, we need to first calculate the velocity of the water in the pipe. We can use the equation of continuity, which states that the flow rate through a pipe must remain constant along its length.
Q = A * v
where Q is the flow rate (0.01 m^3/s), A is the cross-sectional area of the pipe (pi * (d/2)^2), and v is the velocity of the water.
A = pi * (0.15/2)^2 = 0.00176 m^2
v = Q / A = 0.01 / 0.00176 = 5.68 m/s
Next, we can calculate the dynamic head using the Bernoulli equation:
h_dynamic = (v^2) / (2g)
where g is the acceleration due to gravity (9.8 m/s^2).
h_dynamic = (5.68^2) / (2 * 9.8) = 16.06 m
Finally, we can calculate the total head:
h_total = h_static + h_dynamic
= 20 + 16.06
= 36.06 m
The pump head is then:
h_pump = h_total - h_friction
= 36.06 - (35^2) / (2 * 9.8)
= 36.06 - 78.125
= -42.065 m
Since the pump head is negative, it means that the pump is unable to lift the water to the desired height of 20 m, and additional work must be done to overcome the frictional losses in the pipe.
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if the other charges are fixed in place and charge 2q is allowed to move, what will be the kinetic energy k2q of charge 2q when it is very far from the other charges? express your answer in terms of q , d , and appropriate constants.
K2q = 7.76kg^3/d will be the kinetic energy k2q of charge 2q when it is very far from the other charges.
At the corner of the square, the potential energy of interaction of other charges with the charge 2q is given by U_2q
So
U2q.i = k2qq1 / d+k2qq1 / d+k2qq1 = 7.746kg^3 / d
Also, since v_B also
The initial energy of the system is given by;
E_i = U2qi + k2qi =7.76*kg^2/d
Since U2qf=0, the final energy of the system is obtained by
Ef = U2qf + K2qf =k2qf
From the law of conservation of energy, Ei = Ef
Therefore, K2q = 7.76kg^3/d
Kinetic energy is the electricity an item possesses with the aid of distinctive feature of its movement. it is described because the work required to accelerate an object from relaxation to its present day speed. The faster an object moves, the greater its kinetic energy.Kinetic energy is a fundamental concept in physics, and it has important applications in many fields, including engineering, sports, and transportation.
It is also a crucial concept in understanding the behavior of particles and molecules in chemistry and biology.The formula for calculating kinetic energy is 1/2 * mass * velocity^2, where mass is the mass of the object and velocity is its speed in a given direction. This equation shows that the amount of kinetic energy an object has is proportional to its mass and the square of its velocity.
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What are the radiation types in order from lowest to highest energy?
Alpha, beta, and gamma radiation types are listed from lowest to highest energy.
The three forms of radiation were investigated by Rutherford. A helium nucleus, which has a large mass and a limited range, makes up the alpha particle in alpha radiation, which is made up of two protons and two neutrons. Beta radiation is composed primarily of electrons and may reach up to one meter in distance. Gamma radiation, for example, is made up of very energetic photons (it does not have my electrical charge or resting mass).
The particles that are released by radioactive materials have energy. There are three different kinds of particles: alpha, beta, and gamma. The penetrating power of the particles determines their energy.
Alpha rays < Beta rays < Gamma rays
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a 159 watt motor in a bowling alley lifts an 7 kg bowling ball directly upwards at a constant speed. at what speed does the ball rise?
The speed at which the ball rises is 2.24 m/s.
What is power output?Power output refers to the amount of power that a device, machine, or system produces or generates. It is a measure of the rate at which work is done or energy is transferred, and is usually expressed in units of watts (W) or kilowatts (kW).
We can use the formula for power to find the speed at which the ball rises. The power output of the motor is given by:
Power = Work done / time taken
Since the ball is lifted at a constant speed, the work done by the motor is equal to the gravitational potential energy gained by the ball, which is given by:
Work done = mgh
where m is the mass of the ball, g is the acceleration due to gravity (9.8 m/s²), and h is the height through which the ball is lifted. The time taken to lift the ball is equal to the height of the lift divided by the speed of the lift, which is given by:
time taken = h / v
where v is the speed of the lift. Substituting these expressions into the formula for power, we get:
Power = mgh / (h/v)
Power = mgv
Solving for v, we get:
v = Power / (mg)
v = 159 W / (7 kg x 9.8 m/s²)
v = 2.24 m/s
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a certain battery charger uses 12 w of power. at 6.0 cents per kilowatt-hour, how much does it cost to charge batteries for a full day?
It would cost approximately 1.7 cents to charge batteries for a full day using this battery charger.
What type of energy is stored in a battery?A battery stores chemical energy. Chemical energy is a form of potential energy that is stored in the chemical bonds between atoms and molecules. In a battery, this energy is stored in the form of chemicals that can be converted into electrical energy when the battery is used.
To calculate the cost of charging batteries for a full day, we first need to determine the amount of energy used by the battery charger in one day.
Since the power of the charger is 12 watts, we can calculate the energy used in one hour as:
12 watts × 1 hour = 12 watt-hours
To get the energy used in one day, we can multiply the energy used in one hour by the number of hours in a day:
12 watt-hours × 24 hours = 288 watt-hours
To convert watt-hours to kilowatt-hours (kWh), we need to divide by 1000:
288 watt-hours / 1000 = 0.288 kilowatt-hours
Finally, we can calculate the cost of using 0.288 kWh of energy at a rate of 6.0 cents per kWh:
0.288 kWh × $0.06/kWh = $0.01728
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What does a copper calorimeter can with mass 0.100 kg contain?
In thermal equilibrium at atmospheric pressure, a copper calorimeter can with mass 0.100 holds 0.160 kg of water and 0.018 kg of ice.
The heat of chemical reactions or physical changes, as well as their heat capacity, are measured using copper callipers. For effective insulation, felt jacket is given between the vessels as well as at the bottom of the outer vessel. two holes in the bakelite cover that it is equipped with. The thermometer will fit in one of the holes, and the stirrer will fit in the other. With washer, rubber stopper, and stirrer but no thermometer.
because copper has a low specific heat capacity and is an excellent heat conductor. It is the best substance for use in calorimeter construction. Due to its low specific heat capacity, it easily absorbs heat to attain the equilibrium temperature.
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Only second question. Thanks
a) When an identical resistor is added in series with the first resistor and the cell, the current through the resistors will remain the same as A amps.
What happens when iddentical resistor are added in seriesWhen an identical resistor is added in series with the first resistor and the cell, the current through the resistors will remain the same as A amps.
This is because in a series circuit, the same current flows through each component. The total resistance of the circuit increases when a resistor is added in series, but the voltage across the resistors remains the same as the voltage across the cell.
According to Ohm's law, V = IR, where V is voltage, I is current, and R is resistance.
Since the voltage is constant and the resistance has increased, the current through the resistors must remain the same to satisfy Ohm's law. Therefore, the current through the second resistor will also be A amps.
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A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. What is the cars average acceleration
Answer:
the car's average acceleration is 2.77 m/s^2.
Explanation:
The average acceleration of the car can be calculated using the formula for average acceleration, which is:
a = (v_f - v_i) / t
where:
a is the average acceleration
v_f is the final velocity (70 km/h)
v_i is the initial velocity (0 km/h)
t is the time taken (7 seconds)
First, we need to convert the velocity from km/h to m/s, as the formula requires both velocities to be in the same units. 70 km/h is equivalent to 70 * 1000 / 3600 = 19.44 m/s.
Plugging the values into the formula:
a = (19.44 - 0) / 7
a = 2.77 m/s^2
So the car's average acceleration is 2.77 m/s^2.
Transcribed image text: Question 10 (4 points) The focal length of a converging lens describes the location at which magnification is equal to one parallel light rays converge all images form objects must be placed to form an image all light rays converge virtual images form
The focal length of a converging lens is a measure of the distance between the lens and the point at which parallel light rays converge to form an image. The focal point is what we refer to as this.
At this point, the light rays are focused to a single point, resulting in the formation of an image. When an object is placed at a distance greater than the focal length, the light rays diverge, resulting in the formation of a virtual image. This virtual representation is taller and larger than the actual thing. Additionally, the virtual image is located behind the lens, making it an inverted image. The focal length of a converging lens is an important factor to consider when forming an image. The object must be placed at a distance greater than the focal length in order to form a virtual image. If the object is placed closer than the focal length, the light rays will not converge to form an image, but instead will diverge from the focal point.
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Whether a truck comes to a stop by crashing into a haystack or a brick wall, the stopping force is
A) both the same
B) greater with the haystack.
C) greater with the brick wall.
C) Greater with the brick wall. Stopping force is determined by the amount of friction a surface provides.
What is friction ?Friction is a force that acts between two objects when they come into contact with each other. It is an important force that affects our everyday life. Friction can be both beneficial and detrimental. It is beneficial in that it allows us to walk, run, drive, and even write without slipping or sliding. It also helps us to stop when we need to. On the other hand, friction can be detrimental when it causes machines to wear down, resulting in energy being wasted. Friction can also cause heat, noise, and wear on the surfaces of the two objects.
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consider a projectile that is launched on a flat field at an angle of 30 degrees above the horizontal. if the projectile reaches a maximum height of 10 m, how far away from the launching point does it land (ignoring air resistance)?
At every location on the trajectory, the acceleration is constant (but not zero). the route taken by a flying projectile or an item moving while being affected by certain forces.
What does a trajectory look like?The route taken by a projectile, such as a ball or rock thrown, is a well-known illustration of a trajectory. The item only moves in a vastly simplified model when it is subject to a constant gravitational force field.
A positive trajectory is what?The term "career advancement" may also be used to describe a successful professional trajectory. A successful career trajectory involves succeeding along a specified professional path. Many people may believe that advancing in their company is the only way to have a successful career.
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the principle that the universe expresses itself in numbers, visual angles, shapes, and sounds, all connected within patterns of proportion is .
The principle that the universe expresses itself in numbers, visual angles, shapes, and sounds, all connected within patterns of proportion is the divine proportion or golden ratio.
The divine proportion is a mathematical ratio that has been observed throughout nature, art, and architecture. It is approximately equal to 1.618 and is represented by the Greek letter phi (φ).
This ratio has been found to create visually pleasing and harmonious compositions and can be seen in natural patterns such as the spiral arrangement of sunflower seeds, the branching of trees, and the proportions of the human body.
Concept of the golden ratio has been studied for centuries and has been associated with beauty, balance, and harmony.
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if the speed of a wave increases to 1.5 times its original speed while the frequency remains constant, how does the wavelength change?
Answer: The wavelength will also increase by a factor of 1.5
Explanation:
The relation between frequency, speed, and wavelength is
v=fλ where,v=speed
f=frequency
λ =wavelength
Substituting in the new speed and the original frequency, we get:
1.5v = fλ
Dividing both sides of the equation by f, we get:
1.5v/f = λ
So, the new wavelength is 1.5 times the original wavelength.
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https://phys.libretexts.org/Bookshelves/College_Physics/Book%3A_College_Physics_1e_(OpenStax)/17%3A_Physics_of_Hearing/17.02%3A_Speed_of_Sound_Frequency_and_Wavelength
The difference between the new and old wavelengths is 1.5 times.
What is wavelength?In physics, wavelength is defined as the distance between two consecutive points in a wave that are in phase, or that are identical in their displacement from the equilibrium position. In other words, the wavelength is the distance traveled by one complete cycle of a wave.
Wavelength is typically represented by the symbol λ (lambda) and is measured in meters or other units of length. It is an important parameter of waves, including electromagnetic waves such as light and radio waves, as well as mechanical waves such as sound waves.
The wavelength of a wave is related to its frequency and speed through the equation λ = v/f, where λ is the wavelength, v is the speed of the wave, and f is the frequency. This equation demonstrates that for a given speed, an increase in frequency will result in a decrease in wavelength, while a decrease in frequency will result in an increase in wavelength.
Here in the Question,
If the speed of a wave increases while the frequency remains constant, then the wavelength must also change.
The relationship between speed, frequency, and wavelength is given by the formula:
v = fλ
where v is the speed of the wave, f is its frequency, and λ is its wavelength.
If we assume the initial speed of the wave is v1 and the initial wavelength is λ1, then we can write:
v1 = fλ1
If the speed of the wave increases to 1.5 times its original speed, then the new speed v2 is given by:
v2 = 1.5 v1
Substituting this into the equation above, we get:
1.5 v1 = fλ2
where λ2 is the new wavelength.
Solving for λ2, we get:
λ2 = (1.5 v1)/f = (1.5 λ1)
Therefore, the new wavelength is 1.5 times the original wavelength.
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the two light bulbs are now connected in parallel across the 120- v line. find the current through each bulb.
The current through each bulb is 0.15A.
D)
V = Voltage across each bulb = 120 Volts
i400 = current in 400 ohm resistor = V/R = 120/400 = 0.3 A
i800 = current in 800 ohm resistor = V/R = 120/800 = 0.15 A
E)
P400 = V2/R400 = 1202/400 = 36 Watt
P800 = V2/R800 = 1202/800 = 18 Watt
F)
Ptotal = 36 + 18 = 54 Watt
Current refers to the flow of electric charge through a conducting medium. It is defined as the amount of charge that passes through a given cross-sectional area per unit of time. The SI unit of current is the ampere (A), which is defined as the flow of one coulomb of electric charge per second.
In an electric circuit, the current flows from a higher potential to a lower potential, and the direction of the current is taken as the direction in which positive charges would flow. In DC, the current flows in one direction only, while in AC, the current changes direction periodically. The magnitude of the current depends on the potential difference across the circuit and the resistance of the circuit.
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Complete Question:
Two light bulbs have resistances of 400 Ω and 800 Ω.
D). the two light bulbs are now connected in parallel across the 120- v line. find the current through each bulb.
E). Find the power dissipated in each bulb.
F). Find the total power dissipated in both bulbs.
