How much work was done by friction on a person
Megan's mass is 30 kg. She climbs the 4.8 m ladder of a slide and reaches a velocity of 2.8 m/s at the bottom of the slide. How much work was done by friction on Megan? Assume that air resistance is negligible.
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If a sample containing 2.10 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
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Megan's mass is 30 kg. She climbs the 4.8 m ladder of a slide and reaches a velocity of 2.8 m/s at the bottom of the slide. How much work was done by friction on Megan?
A thin 12.7 m long copper rod in a uniform magnetic field has a mass of 68.0 g. When the rod carries a current of 0.291 A, it floats in the magnetic field. What is the field strength of the magnetic field?
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The first person is initially moving forward with a speed of 2.40 m/s, and the second person is initially at rest. What are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
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