280 Answered Questions for the topic AP physics

#### Can someone help me with the question?

A 5.82-kg object passes through the origin at time t = 0 such that its x component of velocity is 5.20 m/s and its y component of velocity is −3.12 m/s.(a) What is the kinetic energy of the object...
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#### How do I solve this question? Help me please?

the beam 13.0 cm farther into the ground before coming to rest. Using energy considerations, calculate the average force the beam exerts on the pile driver while the pile driver is brought to...
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#### How do I solve this?

A 0.200-kg particle has a speed of 1.90 m/s at point and kinetic energy of 7.40 J at point .(a) What is its kinetic energy at ? ______ J(b) What is its speed at ? ______m/s(c) What is the net work...
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#### Can someone please help me with my Physics Question?

A woman fires a rifle with barrel length of 0.6600 m. Let (0, 0) be where the 75 g bullet begins to move, and the bullet travels in the +x-direction. The force exerted by the expanding gas on the...
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#### How do I solve this Physics question? Help Please!

Spiderman, whose mass is 78.0 kg, is dangling on the free end of a 11.8-m-long rope, the other end of which is fixed to a tree limb above. By repeatedly bending at the waist, he is able to get the...
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#### How do I solve this Physics question please?

A raindrop of mass 3.46 10-5 kg falls vertically at constant speed under the influence of gravity and air resistance. Model the drop as a particle.(a) As it falls 80 m, what is the work done on...
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Ap Physics Physics

4d

#### Need help on a physics problem

A cannon sends a projectile towards a target a distance 1360 m away. The initial velocity makes an angle 34° with the horizontal. The target is hit. The acceleration of gravity is 9.8 m/s^2 What is...
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Ap Physics

5d

#### Kinematics- Physics

A ball is thrown upwards at 25 m/s at the edge of a cliff. It hits the ground at thebottom of the cliff 12 seconds after being released. SHOW ALL WORK (equation,algebraic rearrangement,...
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Ap Physics

6d

#### Physics Problem

Acceleration is sometimes expressed in multiples of g, where g = 9.8 m/s^2 is the acceleration of an object due to the earth's gravity. In a car crash, the car's forward velocity may go up from 29...
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Ap Physics Physics

6d

#### A 140-kg crate is pushed along a level floor at a constant speed of 0.22 m/s. If the coefficient of kinetic friction is 0.36, the force of friction between the crate and the floor is most nearly...

A 140-kg crate is pushed along a level floor at a constant speed of 0.22 m/s. If the coefficient of kinetic friction is 0.36, the force of friction between the crate and the floor is most...
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Ap Physics Physics

8d

#### What is the force of air resistance acting on the sky diver, in Newtons?

An 80-kg sky diver jumps from an airplane. After 8 seconds, his speed is increasing at a rate of 3.2 m/s2. What is the force of air resistance acting on the sky diver, in Newtons? (Express your...
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Ap Physics

8d

#### Physics Dyamics

The acceleration of gravity is 10 m/s 2 . What is the acceleration of a 62 kg pail of cement that is pulled upward (not sideways) with a force of 424 N? Answer in units of m/s 2 .

Ap Physics Physics

11d

#### physic question

Two divers jump off nearby diving boards of the same height into the pool. Diver A allows themselves to fall from rest into the water below, while Diver B jumps directly outward with an initial...
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12d

#### NEED HELP SOLVING: Question about two train cars (PHYSICS)

A train car with mass m1 = 618 kg is moving to the right with a speed of v1 = 7.9 m/s and collides with a second train car. The two cars latch together during the collision and then move off to the...
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12d

#### NEED HELP: Question about Car-Truck collision (PHYSICS)

A blue car with mass mc = 459 kg is moving east with a speed of vc = 19 m/s and collides with a purple truck with mass mt = 1246 kg that is moving south with a speed of vt = 10 m/s . The two...
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Ap Physics

12d

#### Physics Dynamics

A car is initially moving at 15.3 m/s when your hit the brakes and the car begins to slow down. The car has a mass of 532 kg and the coefficient of friction between the tires and the road is 0.23....
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Ap Physics

12d

#### Which of the following predictions is correct about why the object does not accelerate downward?

An object is at rest on the ground. The object experiences a downward gravitational force from Earth.

Ap Physics Physics

13d

#### What the difference between these two formulas?

D=vi(sinΘ)(t)+1/2(g)(t)2anddy=vf2 - vi2/ 2gI thought that both of them solve for the maximum height or "peak" of a projectile however when I used them in problems I received diffrent answers.I have...
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Ap Physics Physics

13d

#### Two horses begin pulling a 700-kg stagecoach. One horse pulls with a force of 590 N, while the other horse pulls in the same direction with a force of 630 N.

Two horses begin pulling a 700-kg stagecoach. One horse pulls with a force of 590 N, while the other horse pulls in the same direction with a force of 630 N. If the stagecoach accelerates at 0.06...
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Ap Physics Physics

13d

#### A 5.0-kg watermelon is dropped from a tall building. If the drag force on the watermelon is 34 Newtons, what is the acceleration of the watermelon?

A 5.0-kg watermelon is dropped from a tall building. If the drag force on the watermelon is 34 Newtons, what is the acceleration of the watermelon?

#### Question about fuzzy dice on force and inertia

I cant really show the image but I'll try to describe it best for you to solve: Imagine a rearview mirror and attached to it is your typical fuzzy dice connect with a string (that does not...
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#### Changing speed (non-uniform circular motion)

A cart is going around a circular track. The cart is located at a position. Which is defined by the angle theta, 28 degrees above horizontal.The radius of the track is 2.5 m. At this time the cart...
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Ap Physics Physics

17d

#### Whats the diffrence between these two equations for acceleration in the x direction?

I have two formuals for the same thing and I have no idea which one is for what.ax = -μ(g)ax = g/μsIs one for static friction and the other for kinetic?

Ap Physics Physics

18d

#### Draw a free-body diagram of the airplane, including air drag. Identify as many forces as you can think of but do not try to calculate them. (full question below)

An airplane passes by overhead. The plane has a mass of 50,000 kg, is at an altitude of 10,000 meters and moves at a constant velocity of 150 m/sec. The altitude, velocity and direction of travel...
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Ap Physics Physics

18d

#### General Concepts of Physics

Using the video below, help me find at least two physics concepts. These physics concepts can only be the following: Law of gravitation (Newton), Newton's three laws of motion, and work, power and...
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