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You push your physics book 1.60 along a horizontal tabletop with a horizontal push of 2.80 while the opposing force of friction is 0.550 . How much work does the normal force from the table do on the book? How much work does gravity do on the book? What is the net work done on the book?
What is the velocity of the rocket when it runs out of fuel.
Find the angular velocity of a centrifuge in which a particle 10 cm from the axis of rotation experiences a radial acceleration of 10^3 times g
As a baseball is being thrown, it goes from 0.0 to 40.0 m/s in 0.25 s. What is the acceleration of the baseball
The model rocket is fired vertically from rest. It has a net acceleration of 17.5m/s2. After 1.5s, its fuel is exhausted and its only acceleration is that due to gravity. how high does the rocket travel
A pump flows 100 gal/min of water. The inlet pressure is 0 psig and the outlet pressure is 20 pisg. How much electricity (kW) is required to power the motor
A ball rolls off a table with a horizontal velocity of 5 m/s If it takes 0.6 secs for it to reach the floor, What is the verticle componet of the balls velocity just before it hits the floor
The cable on an elevator of mass m snaps, and two safety mechanisms come into play. find an expression for the speed
One of our closest stellar neighbours.Vega is 5.8 light years away.it has been suggested that TV programs from our planet have reached this star and may have been viewed by the hypothetical inhabitants of a hypothetical planet orbiting this star. A T..
A car traveling at a speed of 55 has its brakes applied at A, reducing speed at a rate of (-t/4) mph/s where t is in seconds. Find cars speed and acceleration
You wish to determine the height of the smokestack of a local coal burning power plant. determine the height of the smokestack
A canoe has a velocity of 0.37m/s southeast relative to the earth. The canoe is on a river that is flowing 0.47m/s, Find the magnitude of the velocity of the canoe relative to the river
A rocket, which is in deep space and initially at rest relative to an inertial reference frame, has a mass of 59.6 × 105 kg, of which 7.27 × 105 kg is fuel. What is the rocket's thrust
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