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A 1.0 kg ball is thrown horizontally with a velocity of 15 m/s against the wall. If the ball rebounds horizontally by a velocity of 13m/s and the contact time is .020 s, what is the force exerted on the ball on the wall?
Compute the numerical value for acceleration
A wheel of mass 1.24kg and radius 0.44 (I = 0.5mr^2) starts from rest and rolls without slipping for a distance of 1.7m down a 35 degree incline. How fast is it traveling at that point?
A disk of mass M is free to rotate about a fixed horizontal axis. What is the downward acceleration of the mass
A positive charge of 4.80 C is fixed in place. From a distance of 3.60 cm a from the fixed positive charge, a particle of mass 5.70 g and charge +3.70 C is released from rest.
Your task in physics laboratory is tomake a microscope from two lenses. One lens has a focal length of 2.4 cm, the other 1.2 cm. You plan touse the more powerful lens as the objective, and you want the eye piece to be 17 cm from the objective
A boy scout starts a fire by using a lens from his eyeglasses tofocus sunlight on kindling 4.6 cm fromthe lens. What is the maximum magnification that can be achieved
what would be the orbital period if the earth were replaced by a star of mass equal to the solar mass in a circular
on a day when the speed of sound in air is 340 ms a bat emits a shriek whose echo reaches it .025 s later. how far away
a cable with 17.0 n of tension pulls straight up on a 1.10 kg block that is initially at rest. what is the blocks speed
A nurse measures the temperature of a patient to be 39.3°C. What is this temperature on the Fahrenheit scale
A 25-g rifle bullet travelling 280-m/s buries itself in a 3.6-kg pendulum hanging on a 2.8m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of pendulum's displacement.
A bird flies 3.6km due west and then flies 1.2km due north, What is the angle between the net displacement vectors of the 2 birds
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