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A 17.5 kg cart is moving with a velocity of 7.65 m/s down a level hallway. A constant force of -10.0 N acts on the cart, and its velocity becomes 3.20 m/s. Assume that air resistance is negligible.
a) What is the change in kinetic energy of the cart?b) How much work was done on the cart?c) How far did the cart move while the force acted?
An object of mass 5 kg is dropped from a certain height. Just before it strikes the ground it has a kinetic energy of 1250 J. From what height was the object dropped
An axon is the relatively long tail-like part of a neuron, or nerve cell. The outer surface of the axon membrane is charged positively, Thus, the membrane is a kind of capacitor, what is its capacitance
The leader of a bicycle race is traveling with a constant velocity of +11.4 m/s and is 11.2 m ahead of the second-place cyclist. How much time elapses before he catches the leader
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Two blocks of mass m and 75 kg are connected via a light cord over a massless, frictionless pulley as shown in the attached figure. If the 75 kg block starts 2.0 m above the floor and takes 3.0 s to reach the floor when released from rest, what..
A fuel tank explodes, ripping the container into two pieces of masses 30 kg and 11 kg, What was the energy released by the explosion
dung beetles are renowned for building large relative to their body size balls of dung and rolling them on the ground.a
A parallel-plate capacitor with circular plates of radiusR is being discharged. The displacement current through acentral circular area, parallel to the plates and with radiusR/2, is 3.5 A. What is the discharging current in A?
A passenger plane lands on the runway at 300kmhrô???1. In a glass of water in the cabin, calculate the deceleration of the plane
Alpha Centauri, a star close to our solar system, is about 4.3 light years away. Suppose a spaceship traveled this distance at a constant speed of .90c relative to Earth. What is the trip distance according to the traveler
Find the work done by this force on the particle and the final speed of the particle as it moves along a path.
An arrow is shot vertically upward and then 1.84s later passes the top of a tree 40.9m high. How much longer will the arrow travel upward, and how high will it go
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