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Assume you start an antique car by exerting a force of 285 Newton on its crank for 0.185 second. Find what angular momentum is given to the engine if the handle of the crank is 0.300 meter from the pivot and the force is exerted to create maximum torque the entire time?
two identical metal spheres a and b are connected by a plastic rod. both are initially neutral. 4.0times1012 electrons
a fan is turned off and its angular speed decreases from 8.5 rad/s to 5 rad/s in 5.0s. what is the angular displacement of the fan
A helicopter, starting at rest, accelerates straight upfrom the roof of a hospital. The lifting forces does work inraising the helicopter. An 810-kg helicopter rises from rest to aspeed of 7.0 m/s in a time of 3.5s. During this time it climbs to a..
A platinum resistance thermometer has resistances of 199.64 ? when placed in a 0°C ice bath and 266.19 ? when immersed in a crucible containing melting potassium. What is the melting point of potassium
A layer of ice has formed on a small pond. The air just above theice is at -5.99 °C, the water-ice interface is at 0 °C, how thick is the layer of ice
an object has a weight of 0.874 n. it is suspended from a scale which reads 0.704 n when the piece is submerged in
A puck slides across a smooth, level tabletop at height H at a constant speed vo. What is the algebraic relationship between the distances x and H
An electron and a positron, each moving at 3.0*10^5 m/s, collide head on, disappear, Determine the momentum of each photon
A 500kg car traveling due east at 54.0km/h collides head on with a 3000kg van moving at 18.0km/h. calculate the velocity of the combined mass
Imagine that a certain bugle plays in C, so that the pitches in "Taps" are low G (196 Hz), middle C (261 Hz), E (329 Hz), and G (392 Hz). How long would this bugle be if uncoiled
A piece of aluminum (specific heat 910 J/kg degrees C) of mass 200 g at 80.0 degree C is dropped into a Styrofoam cup filled with 100 mL of water at 20 degree C
q1. when a surface is irradiated with light of wavelength 4950 a a photo current appears that vanishes if a retarding
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