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A baseball player hits a home run, and the ball lands in the left field seats, 7.5 (m) above the point at which it was hit. It lands with a velocity of 36 m/s at an angle of 28^0 below the horizontal. The positive directions are upward and to the right in the drawing. Ignoring air resistance, find the magnitude and direction of the initial velocity with which the ball leaves the bat.
At Water-Country NH there is a ride called the "Double Geronimo" which is described as an "Extreme Body Slide". how fast would the rider be moving at the bottom of the slide
A 0.170 kg tumour is being irradiated by a radioactive source. Each decay of the radioactive source produces a particle with an energy of 0.450 MeV. find the activity of the radioactive source
a 5.0*10^2 N laod is lifted 6.0 m with a pulley. the force exerted on the pulley rope is 165 N and the efficiency is 65 %. how far is the rope pulled
The density of a sample of air is 1.205 kg/m3, and the bulk modulus is 1.42 105 N/m2, Find the temperature of the air sample
A square coil, enclosing an area with sides 4.6 cm long, is wrapped with 3,149 turns of wire. What average voltage is induced in the coil
Prob. 18 Determine the angular momentum of the shaft of Prob. 18.15 Problems about (a) point A, (b) point B.
An iron disk has a radius of 0.525 m and a mass of 377 kg. The disk is mounted on its axis so that it is free to spin. How much force is required if the force is applied at a distance 15.5 cm from the axis of rotation
two train whistles a and b each have a frequency of 392 hz. a is stationary and b is moving toward the right away rom a
A counter with negligible background gives exactly 10,000 counts in a 1-s period when a standard source is in place. What is the counter dead time
A planet orbits a star, in a year of length 2.77 x 107 s, in a nearly circular orbit of radius 3.38 x 1011 m. determine the angular speed of the planet
A boat moves through the water with two forces acting on it. One is a 2170 Newton forward push by the motor, compute how far will it move in 10.9 seconds
A cart for hauling ore out of a gold mine has a mass of 403 kg, including its load. The cart runs along a straight stretch of track that is sloped 4.45° from the horizontal. Find the work that the donkey performs on the cart during this process
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