8. A physics TA pushes a 20.0 kg cart at a constant velocity 22.0 m down the hall. The force she exerts on the cart is directed at an angle 26.0° below the horizontal, and the force of friction opposing the motion of the cart is 44.0 N. What is the total work done on the cart?
Answers: 2
Physics, 22.06.2019 17:40
Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
Physics, 22.06.2019 18:00
Consider an ideal gas at 27.0 degrees celsius and 1.00 atmosphere pressure. imagine the molecules to be uniformly spaced, with each molecule at the center of a small cube. what is the length l of an edge of each small cube if adjacent cubes touch but don't overlap?
Answers: 2
8. A physics TA pushes a 20.0 kg cart at a constant velocity 22.0 m down the hall. The force she exe...
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