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A 23- bullet traveling 220 penetrates a 2.6block of wood and emerges cleanly at 155. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
tennis ball A is dropped from a height of 15 m. Tennis ball B is thrown horizontally from a height of 15 m with a horizontal velocity of 25 m/s
An amateur radio operator wishes to build a receiver that can tune a range from 13.8 MHz to 15.1MHz, What is the required value of the constant inductance
1. daggett turns his living room into a giant turntable but forgets to pin down the furniture. as a result the
A heat engine having an ideal monatomic gas as a working substance has a cycle consisting of the following three processes: isobaric expansion at 200 kPa.
A tortoise can run with a speed of 0.10m/s, and a hare can run 20 times as fast. What is the length of the race
we have a tuning fork with a frequency f resonating in a cavity with an open top of width 2.54cm and a length of 20.4cm at 20 degrees celsius and one atm
A 100.0 pF capacitor consists of two circular plates of radius .4 mm. How far apart are the plates
In 1965 Penzias and Wilson discovered the cosmic microwave radiation left over from the Big Bang expansion of the universe. Determine the corresponding electric field amplitude
A space traveller whose mass is 115 kg leaves earth. What are his weight and masson earth and in interplanetary space where there are no nearby planetary objects.
A light ray is incident (from air with n = 1) on a material with n = 1.5 as shown in the diagram below. Here ? = 38°. What is the angle of refraction in the material
A particle is in uniform circular motion about the origin of an xy coordinate system, moving clockwise with a period of 7.70 s. what is its velocity in unit-vector notation
If the surface of the water is calm and the pool is h = 1.52 m deep, find out the minimum diameter of the raft that would prevent the diamond from being seen.
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