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A 2.0 kilogram softball is pitched to you at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 second, find the magnitude of the average force the bat exerted?
What is the radius of the circular track?
An incident X-ray photon of wavelength 0.2800 nm is scattered from an electron that is initially at rest. find the momentum gained by the electron
Suppose a car starts from rest and completes a straight line, 1/4 mile (402 meter) race in 12.3 seconds. Assume the acceleration to be constant.
Light passes from medium A into medium B at an angle of incidence of 44 degrees. The index of refraction for A is 1.25 times that of B. What is the angle of refraction? Express your answer using two important figures. What is the ratio of the speed o..
What is the fractional change in the period of the pendulum.
Light of wavelength 502 nm falls on a diffraction grating whose spacing is 1560 nm. What is the largest order spectrum which can be observed
Suppose that the object rolls withoutslipping. If the size of the object is negligible and the radius ofthe loop is R, find the minimum height from which the objectmust be released, so that it does not loose contact, if itis
A space station shapedlike a giant wheel has a radius 98 m and amoment of inertia of 5.04 108kg·m2. What acceleration is experienced by the managers remaining at the rim
question a backpacker carries an empty soft-plastic water container into the mountains. the initial volume at 1.0 atm
Suppose a plane starts from rest when the time is zero. The plane accelerates down the runway and at 29sec attains a velocity of +260 km/h, Calculate the average acceleration of the plane
the moon has a mass of 7.36 x 1022 kg and a radius of 1.74 x 106 m.a what is the acceleration due to gravity on the
Two cartons sit next to, and touching, each other on a frictionless horizontal surface. The lighter carton has a mass of 5.28 kg and the heavier carton has a mass of 7.42 kg. Find the contact force between these cartons when a horizontalforce of 4...
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