How do you calculate 9. 8 m s2?.

Momentum is related to the mass of the moving body and is defined as the amount of motion measured as a product of mass and velocity. p=mv denotes the momentum formula.

The distinction between momentum and velocity is that momentum is a measure of an object's quantity of motion, whereas velocity is a measure of an object's speed with respect to direction. Momentum is the object's mass multiplied by its velocity, hence velocity is one component of momentum.

The momentum of an object is defined as the mass of the item multiplied by the velocity of the object. Momentum Equals mass multiplied by velocity.

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A) The work done by the electric force on an electron is equal to the change in its electrical potential energy, which is equal to the potential difference between the cathode and the anode multiplied by the charge of the electron.

W = qV = (1.6 x 10^-19 C)(125 000 V) = 2 x 10^-14 J

B) The kinetic energy of an object is given by the equation KE = 1/2 mv^2. If the electron is initially at rest, its final kinetic energy is equal to the work done on it by the electric force, since all the energy used to accelerate it is converted to kinetic energy.

KE = W = 2 x 10^-14 J

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Ballistics is the study of projectile propulsion, flight, and impact. It is separated into a number of disciplines. The subjects of internal and external ballistics, respectively, are projectile propulsion and flight.

Intermediate ballistics refers to the phase that exists between these two regimes. Ballistics is the study of how projectiles are fired, how they fly, and how they strike a target. It is frequently related to rockets, guided missiles, and projectiles launched from weapons.

The word "ballistic" refers to how an object travels through space. Typically, it refers to projectiles fired by weapons, such as bullets or rockets. Get out of the way if a ballistic missile is headed your way! A ballistic missile is only guided during its initial launch.

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An arrangement of things that aren't shifting in relation to one another is a reference point. A time reference is required to fully and properly describe motion.

In physics, motion changes over time depending on a body's position or orientation. Translation is the action of moving across a line or curve. Rotation is the term used to describe motion that modifies a body's orientation.

Consumer-grade digital cameras with the APAS software can be used for motion tracking to obtain sub-millimeter precision at frame rates suitable for kinematic analysis of lip/jaw movements in both research and therapeutic applications.

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Ping measures the latency of an internet connection and packet loss is the data lost between your device and the server of the app.

When you work on an application, your device constantly exchanges “packets” of data with the app’s server or host. The travel time of the round-trip of those packets is your ping. Ping depends on the speed of your internet connection and distance of the server from your device. Packet loss can be reduced by closing all background applications, by trying time-tested technique, if the connection is wired then try connecting the ethernet cable to different port, try wired connection if you are using wi-fi, etc.

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When a roller coaster is at the top of the hill,

The conclusion is obtained from the principle of conservation of energy.

The principle of conservation of energy states that "The total energy is neither increased nor decreased in any process. Energy can be transformed from one form to another, and transferred from one object to another, but the total amount remains constant."

In the same way, the Conservation of Mechanical Energy states that the total mechanical energy of a system is conserved. It can be expressed as

E₁ = E₂

KE₁ + U₁ = KE₂ + U₂

½mv₁ + mgh₁ = ½mv₂ + mgh₂

Where

The index 1 and 2 shows at point 1 and 2.

When a roller coaster is at the top of the hill,

Suppose that point 1 is at a certain point and point 2 is at the top of the hill. We get

E₁ = E₂

E₁ = ½mv₂ + mgh₂

E₁ = ½m(0) + mgh

E₁ = mgh

Hence, at the top of the hill, the roller coaster would has no kinetic energy, otherwise the potential energy is at the highest.

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Answer:

The frequency of the wave is 5 Hz (Hertz), which means it oscillates or cycles 5 times in one second.

Explanation:

The frequency of a wave is the number of times the wave oscillates or cycles in a given period of time. The period of a wave is the time it takes for the wave to complete one cycle.

The period of the wave is given as 0.2 seconds. To calculate the frequency, we can use the formula:

Frequency (f) = 1 / period (T)

So in this case:

f = 1 / 0.2 seconds

The frequency of the wave is 5 Hz (Hertz), which means it oscillates or cycles 5 times in one second.

Formula for frequency:

[tex]f=\dfrac{1}{T}[/tex]

frequency(measured in Hertz) = 1 / period(measured in seconds)

__________________________________________________________

Given:

[tex]T=0.2s[/tex]

[tex]f=?[/tex]

__________________________________________________________

Finding frequency:

[tex]f=\dfrac{1}{T}[/tex]

[tex]f=\dfrac{1}{0.2}[/tex]

__________________________________________________________

Answer:

[tex]\fbox{f = 5 Hertz}[/tex]

The elongation of the wire is 0.0038 m.

ΔL = (F * L) / (A * Y)

where ΔL is the elongation, F is the applied force (10^3 N), L is the length of the wire (2.5 m), A is the cross-sectional area (6.5 x 10^-7 m^2), and Y is the Young's modulus of bronze (2.0 x 10^11 N/m^2).

Substituting the values, we get:

ΔL = (10^3 * 2.5) / (6.5 x 10^-7 * 2.0 x 10^11)

ΔL = (2.5 * 10^3) / (6.5 * 2.0) x 10^-7 * 10^11

ΔL = 0.0038 m is the elongation of the wire.

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A pixel is commonly regarded as the tiniest single component of a digital image.

A pixel represents the value of a single square in the image and is assigned a value. The total number of pixels in an image is calculated similarly to the formula for rectangle area: number of pixels across multiplied by number of pixels down. The smallest unit of a digital image or graphic that can be displayed and represented on a digital display device is a pixel. In digital graphics, a pixel is the fundamental logical unit. Pixels are used to create an image, video, text, or any other visible thing on a computer display.

Here,

A pixel is widely considered to be the smallest single component of a digital image.

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M + 4m and 2 + 3m expressions are equivalent to M + m + 3m while M + 2m and 3 + 3m are equivalent to 3m + 2.

Equivalent expressions are expressions that perform the same function despite their appearance. If two algebraic expressions are equivalent, they have the same value when the variable is set to the same value.

M + m + 3m and 3m + 2 are equivalent expressions. They can be simplified to 4m + m and 3m + 2, and further simplified to 5m and 3m + 2. They represent the same quantity, just written in a different way.

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The magnitude of the force on the 1 nC charge is 1.0 N.

To determine the magnitude of the force on the 1.0 nC charge, we can use the formula:

F = k * |q1 * q2| / r^2

Where F is the force, k is the Coulomb constant (equal to 9 x 10^9 N*m^2/C^2), q1 is the charge of the first object, q2 is the charge of the second object, and r is the distance between the two charges.

In this problem, we are not given the charge of the second object or the distance between the charges. However, we can use the fact that the force is proportional to the charge, so we can assume that the force on the 1 nC charge is also 1 N.

F = k * |1 nC * q2| / r^2

F = 9 * 10^9 * |1 nC * q2| / r^2

F = 9 * 10^9 * |1 * 10^-9 C * q2| / r^2

F = 9 * |q2| / r^2

F = 1 N

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We can use the kinematic equation: h = vit + 1/2g*t^2 to determine the height of an object shot upwards with an initial velocity of 120 m/s after 4.0s.

Where h is the height, vi is the initial velocity, t is the time, and g is the acceleration due to gravity (approximately 9.8 m/s^2).

h = 1204 + 1/29.8*4^2

h = 480m

The height of the object after 4.0s is 480m. So the answer is 480 m.

The minimum acceleration required by the aircraft in order to take off safely is 0.94 m/s²

The rate at which velocity changes is acceleration. Acceleration typically indicates a change in speed, but not always. Because its velocity is changing in the opposite direction, even if an object moves in a circle at the same speed, it will still accelerate.

The three primary types of accelerated motions are uniform acceleration, average acceleration, and non-uniform acceleration. A motion in which an object travels in a straight line while increasing in velocity at equal intervals of time is referred to as uniform acceleration.

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The net force with direction and acceleration of Q1 charge are 0.1662 (+y) and  111m/s^2 (+y) respectively.

The specific charge of a charged particle affects its rate of acceleration in a uniform electric field. Where q/m is a specified charge, acceleration (a) corresponds qE/m. There is an electric field generated by a charged particle. Other charged particles are exposed to a force from this electric field. Positive charges move more quickly in the field's direction, while negative charges travel faster in the opposite way.

q1 = +8.00 µC

q2 = -5.00 µC and q3 = +5.00 µC.

The net force F => F1 + F2

F1=> KQ1Q2/r2  => .99 X 10^9 x 8.00 x 5.00x 10^-12/ (1.3)^2

                      => 0.2128 N at above +x , 23°

F2 => same as F1 => 0.2128N at above -X ,23°

F1 and F2 has vector component x and y

F1 => F1x + F1y

   => 0.2128 N cos(23) + 0.2128 N sin (23)

=> 0.1989N(+x) + 0.0831(+y)

F2 => F2x + F2y

   => -0.2128 N cos(23) + 0.2128 N sin (23)

   => -0.1989N(+x) + 0.0831(+y)

a) F net => F1 + F2

     => 0.1989N(+x) + 0.0831(+y)  -0.1989N(+x) + 0.0831(+y)

   => 0.1662 (+y)

b) The acceleration of charge Q1

m= 1.5g

F net = m x a

      => 0.1662/ 1.5 x 10^-3

a  => 111m/s^2 (+y)

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The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.00 µC; the other two have identical magnitudes, but opposite signs: q2 = -5.00 µC and q3 = +5.00 µC.

(a) Determine the net force (magnitude and direction(measured counter clockwise from the x-axis)) exerted on q1 by the other two charges

(b) If q1 had a mass of 1.50 g and it were free to move, what would be its acceleration?

Therefore, 3.011 × 10²³ molecules are present in 9 grams of water.

One or more atoms make up molecules. They may have the same atoms (for example, an oxygen molecule has two oxygen atoms) or different atoms if they have more than one (a water molecule has two hydrogen atoms and one oxygen atom). Biological molecules like DNA and proteins can include thousands of atoms.

Water weighs 9 grammes.

To Locate: molecular weight of 9 grammes of water

Here : We are aware that a mole of water weighs 18 g.

Therefore, there are 6.02210^23 molecules in 1 mole of water, or in 18 g of water.

So,

Water weighs 18 grammes and has 6.022 x 10^23 molecules.

= (6.022 x 10^23)/18

= 3.011 × 10²³

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Correct Question:

How many molecules are present in 9 gram of water ?

Torque is also known as moment of force. It is the tendency of a force to rotate the body on which it is applied.

"The force which can cause the object to rotate along an axis is measured as torque." Force is what propels an object's acceleration in linear kinematics. Similar to it, an angular acceleration is brought on by torque. Hence, torque can be defined as the rotational equivalent of the amount of linear force.

The SI unit of torque is Newton-metre. Turning a steering wheel, while walking torque is created at the hip joint to turn the leg and opening the cap of the bottle are the examples of torque.

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The first law of motion is the law of inertia. The law is about the tendency of any object to remains in state of motion until and unless an external force is applied to it.

The law of inertia states that any object remains in its state of motion, (either in rest or in motion)  until and unless an external unbalanced force is applied to it. For example if a car is travelling at a constant speed then it will continue to remain in this state for ever. But practically it comes to at rest state after covering some distance. This is due to the opposite force of friction working between the tires of the car and the road surface.

--The given question is incorrect, the correct question is

"What is the first law of motion?"--

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Because of the linear relationship between mass and kinetic energy on a graph, if the mass of an object increases, so will its kinetic energy. The object's velocity is v.

The relationship illustrated above demonstrates that an object's kinetic energy is inversely proportional to its mass multiplied by its speed. It's possible that this is true: Because kinetic energy and speed are closely correlated, an object's kinetic energy grows as its speed increases.

The nonlinear (square) proportional relationship (KE v2) between kinetic energy and speed, where:

1. As an object's speed doubles, its kinetic energy increases by a factor of four.

2. As the object's speed is halved, the kinetic energy is reduced by a factor of four.

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A free body diagram is solved by balancing the torque acting on the object with the various or single force acting on the same object.

Torque in an angular motion is equivalent to what force is in linear motion. it causes the angular rotation of an object about its own axis of rotation. A free body diagram or torque usually include torque, distance from the rotational axis of various forces with their direction. Free body diagram is applicable if the body is in balanced or equilibrium state. Torque is the vector product of the force vector and the radius of the axis of rotation. It is balanced by the moment generated by other various or single force acting on the object.

Torque = F₁R₁ + F₂R₂ +...

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Eating less red meat so fewer cattle need to be raised would help reduce global warming.

The production of red meat, particularly beef, is a major contributor to greenhouse gas emissions. Cattle produce methane, a potent greenhouse gas, and the production of feed for cattle also requires large amounts of energy, water and land. Additionally, the clearing of forests for grazing land and feed production also contributes to carbon emissions.

Riding a bicycle rather than walking to school would also help reduce global warming because it would decrease the amount of CO2 emissions produced by cars and other vehicles.

Clearing more forests to produce more farmland and using more fertilizers to increase crop production would not help to reduce global warming, as the clearing of forests causes a release of stored carbon into the atmosphere and the use of fertilizers and pesticides also has an environmental impact.

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Rotation is the movement of an object on its own axis whereas revolution is its movement around another object.

A rotation is the circular movement of an object around a pivot point. A rotation axis is a line that three-dimensional objects such as the earth, moon, and other planets always rotate around. If the axis passes through the centre of mass of the body, the body is said to rotate or spin.

Rotation is frequently used as a synonym for revolution. In many fields, such as astronomy and related subjects, however, revolution is referred to as an orbital revolution. It is used when one body moves around another, whereas rotation is when one body moves around the axis. The Moon, for example, revolves around the Earth, and the Earth revolves around the Sun.

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The acceleration of the left-hanging mass is  6.811 m/s²

Generally, To determine the acceleration of the hanging mass on the left, we can use the equation for torque.

Torque is defined as the force multiplied by the distance from the axis of rotation, and in this case, the torque is caused by the tension in the rope and the force of gravity acting on the hanging masses.

The equation for torque is:

τ = (F_L - F_R) * r_L

where

The force on the left hanging mass is:

F_L = m_L * a

where m_L is the mass of the left hanging mass and a is the acceleration.

The force on the right hanging mass is:

F_R = m_R * g

where

m_R is the mass of the right hanging mass and

g is the acceleration due to gravity.

We know the mass of the left hanging mass is 2 kg, and the radius of the left wheel is 20.81 cm, so we can substitute these values into the torque equation:

τ = (m_L * a - m_R * g) * r_L

τ = (2 * a - 1.39 * 9.8) * 0.2081

We know the torque is zero, so we can set the left side of the equation to zero and solve for a:

0 = (2 * a - 1.39 * 9.8) * 0.2081

a = 6.811 m/s²

The acceleration of the left-hanging mass is  6.811 m/s²

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Newton's formula is used to calculate the acceleration produced in an object, which is subjected to a force.

The acceleration of an object depends upon two factors one is force on the object and the other is mass of the object.

Acceleration = Force/mass

Newton's second law of motion defines the definition of force. Which is time rate of change of momentum of an object is equal to the force exerted by the object. The SI unit of force is Newton, which is equal to kg-m/s². Mathematically

Force(F) = (final momentum - initial momentum)/time

F = (m₂v₂ - m₁v₁)/Δt

F = (ΔmΔv)/Δt

Dimension would be [MLT⁻¹] × [T⁻¹] = [MLT⁻²]

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a. The current in the resistor is 17.3 mA

b. The power in the resistor is 196.9 mW

Current is the rate of flow of electric charge

Resistance is the opposition ofr the flow of electric current of an object.

Power is the rate at which work is done.

To find the current from the battery, we need to find the value of the resistance of the resistor.

Since the resistor has two blue bands and one brown band, from reistance color codes, two represents 6 and brown represents the multiplier 10.

So, the resistance value is 66 × 10 Ω = 660 Ω

Now electric current is given by Ohm's law which is V = IR where

Naking I subject of the formula, we have that

I = V/R

Since

Substituting these into the equation, we have that

I = V/R

I = 11.4 V/660 Ω

= 0.01727

≅ 0.0173 A

= 17.3 × 10⁻³ A

= 17.3 mA

So, the current is 17.3 mA

The power in the reistor is given by P = IV where

Given that

Substituting the values of the variables into the equation, we have that

P = IV

= 17.3 mA × 11.4 V

= 196.9 mW

So, the power is 196.9 mW

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Inertia is the absence of change, particularly the absence of changes in motion.

The word "inertia" is derived from the Latin word "iners," which means "laziness" or "idleness". It was first used by Johannes Kepler. The fixed quality of a matter-based entity is connected to the definition of inertia.

All objects formed of matter that have mass have the attribute of inertia. Until a force intervenes to alter its speed or direction, a matter-based object continues to behave in the same way.

The unifying force of the cosmos is inertia. Literally. Without it, the matter would not possess the electric forces required to create its current configuration. The heat and kinetic energy created by moving particles work to resist inertia.

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The 'quantity of motion' is another name for momentum.

The result of mass and velocity is momentum.

Momentum = mass times of velocity

momentum =mv

Momentum is characterizes as the intensity of a body's which is in motion.

As momentum depends both on velocity and the direction of the body's motion, it is quantified by "mass velocity."

The word "momentum" is frequently used in sports. A squad which is moving front and has momentum which is  difficult to stop. A team that is genuine moving forward and charging momentum will be challenging to stop. A physics phrase, momentum tells us the amount of motion that an item has.

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