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A baseballs has mass 0.145 kilogram.
(a) If the velocity of a pitched ball has a magnitude of 50 meter per second and the batted ball's velocity is 61.0 m/s in the opposite direction, obtain the magnitude of the change in momentum of the ball and of the impulse applied to it by the bat.
(b) If the ball remains in contact with the bat for 2 milliseconds, obtain the magnitude of the average force applied by the bat.
After hitting a long fly ball that goes over the right fielder's head and lands in the outfield, If the player comes to rest at third base, how much work was done on the player by friction
High-voltage power lines are a familiar sight throughout the country. What is the resistance of ten kilometers of this wire
A thin film of polystyrene is used as an antireflective coating for fabulite, What is the minimum thickness of film required, Assume that the wavelength of the light in air is 510 nanometers
In the model of hydrogen atom created by Niels Bohr, the electron moves around the lone proton in the nucleus at a speed of 2.2 x 106 m/s in a circle with radius 5.3 x 10-11 meter. Determine is the total energy positive or negative
A laser beam has a diameter of 2 mm and average powerof 5 mW. The radiation pressure exerted by this beam is
The linear density of a rod of length 4 m is given by p(x) = 9 + 2sqrt(x) measured in kilograms per meter, where x is measured in meters from one end of the rod. Find the total mass of the rod.
The four tires of an automobile are inflated to a gauge pressure of2.2 105 Pa. Each tire has an area of0.024 m2 in contact with theground. Determine the weight of the automobile
x-ray photons of wavelength 0.0248 nm are incident on a target and the compton-scattered photons are observed at 90
A solenoid is to have an inductance of 0.274 mH, a cross-sectional area of 5.73 10-4 m2, and a length of 37.9 cm. How many turns per unit length should it have
In an L-R-C series circuit, L = 0.398H , R = 310ohms , and C = 5.91×10?8F . When the ac source operates at the resonance frequency of the circuit, What is the voltage amplitude of the source
You drop a 12-g ball from a height of 1.5 m and it only bounces back to a height of 0.81m. What was the total impulse on the ball when it hit the floor
A woman is going to a friend’s house to discuss opening a business. At 11am she starts from rest and accelerates at a constant 2.5m/s2 for 9s to get to cruising speed. She drives for 15 minutes at this constant speed before she enters city traffic.
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