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At a playground, a 22 {\rm kg} child plays on a slide that drops through a heightof 2.5 {\rm m}. The child starts at rest at the top of the slide.On the way down, the slide does a nonconservative work of-366 {\rm J} on the child.
What is the child's speed at the bottem of the slide?
the headlights of a pickup truck are 1.32 m apart.a. what is the greatest distance at which these headlights can be
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A shaving/makeup mirror is designed to magnify your face by a factor of 1.21 when your face is placed 19.5cm in front of it
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A 1000 kg experimental rocket sled on a level frictionless rail is loaded wiht 50kg of propellant. It exhausts the propellant in a 20-s "burn". If rocket, initially at rest, moves at 150m/s after the burn, what impulse is experienced by the rocket..
a force of 500 N is requited to hold a spring in the state where it is compressed 0.1 m from its relaxed length. how much work was done to compress the spring
What is the magnitude of the external force essential to hold a 2 kg cart motionless at the top of a 2m high incline which is 30 degrees.
Consider a container with a partition in the middle. The container is thermally isolated from the environment. Initially one half of the container is filled with gas A (N molecules) and the other half with gas B (also N molecules).
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