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A bat flying at 5.25 m/s is chasing an insect in the same direction. The bat emits a 40.10-kHz chirp and receives back an echo at 40.50 kHz. (Take the speed of sound in air to be v = 343 m/s.)
(a) What is the speed of the insect?
What is the percent change in momentum of a proton that accelerates from 0.42c to 0.91c?0
To find the height of an overhead power line, you throw a ball straight upward. The ball passes the line on the way up after 0.65, What is the height of the power line
For alpha particles of energy 7.68 MeV scattered from a platinum foil two microns thick, find the collision diameter
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The intensity of sunlight at the Earth's surface on a fairly clear day is 1000W/m2. [20pts], What is the maximum value of the electric field
A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 60.0 degrees above the horizontal. The rocket is fired toward the ground 11.0-m high wall, which is located 27.0 m away. By how much does the rocket clear the top of the wa..
A 200 g block hangs from a spring with spring constant 10 N/m. At t=0 s the block is 23 cm below the equilibrium point and moving upward with the speed of 125 cm/s. What are block's oscillation frequency? What is the block's distance from equilibri..
An extreme skier, starting from rest, coasts down a mountain that makes an angle 25.0° with the horizontal. How fast is she going just before she lands
Which pulls harder gravitationally, the Earth on the Moon, or the Moon on the Earth? Which accelerates more? Explain your answers in terms of relevant principles of physics.
A total current of 23 mA flows through an infinitely long cylinderical conductor of radius 4 cm which has an infinitely long cylindrical hole through it of diameter r centered at r/2 along the x-axis as shown. What is the magnitude of the magnetic..
question1a stable nucleus is composed of z protons and n neutrons. is the mass of nucleus identical to the sum of the
Two blocks with masses m = 16.7 kg and M = 70.1 kg are not attached. The coefficient of static friction between the blocks is 0.45 but the surface beneath M is frictionless. What is the minimum force F required to hold m against M?
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