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You're having a hard time pushing a refrigerator across the kitchen floor. The force of your own push is 830 N. The refrigerator has a mass of 344 kg.
The refrigerator moves with a constant velocity of 0.84 m/s for 4.7 s. What is the magnitude of the frictional force opposing your push?
What force must you push with if you want to increase its velocity by 0.84 m/s over these 4.7 s?
A rod moving in the positive x direction is measured by a stationary observer to have a length of 10.0meters and to be oriented at an angle of 70.0 degrees with respect to the positive x axis
johnny throws a shotput at an angle of 45.deg and it travels a horizontal distance of 30. meters. if he releases the
Every year, there is a foot race to the top of the Empire State Building. The vertical distance traveled (using the stairs!) is about 440 m. what was his average power output during the race
After landing, a jetliner on a straight runway taxis to a stop at an average velocity of -32.0 km/h. what are the planes initial velocity and acceleration
A cat is trying to jump onto a countertop that is 1m tall from 0.3m away. The cat's initial jump speed (magnitude of the total initial velocity) is 10m/s
Snow is falling vertically at a constant speed of 5.0 m/s. At what angle from the vertical do the snowflakes appear to be falling as viewed with the driver of a car traveling on a straight, level road by a speed of 20 km/h?
A 1.83-kg solid sphere (radius = 0.141 m) is released from rest at the top of a ramp and allowed to roll without slipping. What is its rotational kinetic energy
A 24.00 kg child is on a swing that hangs from 1.6-m long chains. What is her highest speed if she swings out to a 45° angle.
water drips from the nozzle of a shower onto the floor 203 cm below. the drops fall at regular equal intervals of time
The block is acted upon by its weight w=200lb, a horizontal force Q=600 lb and pressure P exerted by the inclined plane. The resultant R of these forces is up and parallel to the incline there by sliding the block up it. Establish P and R.
A rope is used to pull a 3.57 kg block at constant speed 3.58 m along a horizontal floor. What is the work done by the rope's force
A car travels at a speed of 29 m/s around a curve of radius 67 m. What is the net centripetal force required to keep the car from skidding sideway.
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