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In a billiard game, one ball moving at 5 meter per second strikes a second ball, which is at rest. The second ball moves off at 4.3 meter per second at an angle of 30 dergee to the direction of the first ball's original velocity. Evaluate the velocity of the first ball after the collision?
A roofer is working on a roof that slants at 39.0° above the horizontal, he accidentally nudges his 89.0N toolbox
A thin film of soap (n = 1.35) is floating in air. If light of wavelength 600 nm is missing from the reflected light, what is the minimum thickness of the soap
charge moving perpendicularly to an electric. an electron has a kinetic energy equal to 2e-16 j moves horizontally into a uniform field. find the force of the electron between the plates and acceleration
an object is shown next to a lens of focal length 50cm. Given that the image is also shown on the right side of the lens, determine the image location
A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32m high. Assuming that air resistance can be ignored, find the initial speed of the rock
One cubic meter (1.00 m3) of aluminum has a mass of 2.70 103 kg, and the same volume of iron has a mass of 7.86 103 kg. Find the radius of a solid aluminum sphere
A 12.9-?F capacitor, a 22.1-k? resistor, a switch, and a 25.0-V battery are connected in series. What is the rate of change of the elecric field between the plates of the capacitor
A particle with charge +3 nC is located at position A. Another particle with charge -4 nC is located at position B. What is the magnitude of the electric field at location B
Suppose a recently found elementary particle has an average life time, T = 10.6 ns, when at rest. find how fast must it be moving relative to the velocity of light
The springs of a 1800kg car compress 5.4mmwhen its 64kg driver gets into the driver's seat.If the car goes over a bump, what will be the frequency of oscillations
Explain the reasons for salient features of the power grid, including the predominant use of alternating current rather than direct current, transmission of power at high voltages(often with bundles of wire rather than single conductors), the use ..
A circular loop (radius= 17 cm) of wireis placed in a magnetic field that makes an angle of 30° withthe normal to the plane of the loop. The magnitude of this field increases at a constant rate from 30 mTto 36 mT in 15 ms.If the loop has a resista..
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