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A 240-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 31° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?
A device found at some amusement parks asks you to "test your personal force" by grasping two conducting bars, What voltage does the machine have to apply to the conducting bars to drive a current of 30.0 mA through your body
A 16.2 g bullet with an initial speed of 870 m/s embedded itself in a 40.0 kg block, What is the maximum compression of the spring
A ball is thrown straight upward and reaches the top of its path in 1.71 s (before it starts to come back down). A second ball is thrown at an angle of 38.2 degrees with the horizontal. At what speed must the second ball be thrown so that it rea..
Sam, whose mass is 74 kg, straps on his skis and starts down a 67-m-high, 20 ^\circ frictionless slope. Find Sam's speed at the bottom using work and energy
in an effort to pump up you decide to hit the gym and lift weights everyday of the week. your favorite lift which you
Suppose that the light is incident at right angles to the film. what is the minimum distance from the slits to the screen when 580 nm light is used.
a submarine suddenly breaks up at a depth of 248 m below sea level. the air in the submarine will then be suddenly
Violet light and red light travel through air and strike a block of plastic at the same angle of incidence. Find the index of refraciton for violet light in plastic
A baseball outfielder throws a 0.150 kg baseball at a speed of 35.0 m/s and an initial angle of 26.0°. Illustrate what is the kinetic energy of the baseball at the highest point of its trajectory?
a woman is riding a jet ski at a speed of 29 ms and notices a seawall straight ahead. the farthest she can lean the
if we have an electron orbiting an atomic nucleus. we may think the electron is doing a circular motion around the
A car travels at a constant speed around a circular track whoseradius is 3.26 km. The car goes once around the track in 253 s. What is the magnitude of the centripetal acceleration of the car?
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