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A wheel of diameter 3.0 cm has a 4.0-m cord wrapped around itsperiphery. Starting from rest, the wheel is given a constant angular acceleration of 2.0 rad/s2.The cord will unwind in: 0.82 sB. 2.0 sC. 8.0 sD. 16 sE. 130 s
a football is kicked at ground level with a speed of 16.6ms at an angle of 42.9 to the horizontal. how much later does
if the observer knows hisher speed is 25.0 ms and the temperature is 30degc and hears a frequency of 450.0 hz what is
particle a of charge 4.00 10-4 c is at the origin particle b of charge -5.00 x 10-4 c is at 7.00 m 0 and particle c of
How much work done against force of gravity
Planet A and planet B are in circular orbits around a distant star. Planet A is 7.6 times farther from the star than is planet B... What is the ration of their speeds
An automobile transmission has 175 hp of power entering from the engine, 167 hp leaving to the wheels, while losing 5000 Btu/hr to the surroundings as heat.
A rope, under a tension of 90N and fixed at both ends, oscillates in a second-harmonic standing wave pattern. What is the mass of the rope
In an old house, the heating system uses radiators, which arehollow metal devices through which hot water or steam circulates.In one room the radiator has a dark color (emissitivity = 0.891).It has a temperature of 66.1 oC.
a convex mirror of radius of curvature 1.73 m is placed 0.237 m from a chess piece which is on the reflecting side of
The system pictured below consists of two blocks of mass m connected via springs to two walls. The springs all have spring constant k. Write the equations of motion for this system. Use as your variables the displacement of each block from its res..
A ball thrown into the air lands on the same horizontal level, 31 m away, and 2.6 s later. Find the magnitude of the initial velocity
a golf ball strikes a hard smooth floor at an angle of 22.1 deg and as the drawing shows rebounds at the same angle.
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