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a. In what frames of reference does special relativity apply?
b. In what frames of reference must general relativity be used?
c. Describe what happens to time and length at speeds close to the speed of light.
A child playing tee ball hits a stationary 60g ball with a 220g bat swinging initially at 4.0m/s, What's the bat's post-impact speed
A supertrain of proper length 200 m travels at a speed of 0.9 times the speed of light (relative to the tunnel) as it passes through a tunnel having proper length 80 m. how much longer is the train than the tunnel
A 3.45 kg mass vertically compresses a spring 67.0 cm before it starts to rebound. How high will the Mass move above the uncompressed it the mass is left to "bounce" back up?
A 0.47 kg piece of wood floats in water but is found to sink in alcohol (specific gravity = 0.79) in which it has an apparent mass of 0.033 kg.
A race car with a mass of 680kg travels on a flat track in a circular arc of radius 100m. what is the magnitude of the normal force in Newton's
In a certain particle accelerator, protons travel around a circular path of diameter D in an evacuated chamber, What is the mean free path of the gas molecules
Water flowing through a garden hose of diameter 2.73 cm fills a 21.0 L bucket in 1.50 min. What is the speed of the water leaving the end of the hose
In an RCL circuit a 120 V (60Hz) generator powers a 40 ohm resistor, a 50 mH inductor and a 60mF capacitor all connected in series find the impedance.
In reaching her destination, a backpacker walks by an average velocity of 1.28 m/s, due west. This average velocity results as she hikes for 6.44 km with an average velocity of 2.56 m/s, due west, turns around, and hikes with an average velocity of 0..
Suppose a news report stated that starship Enterprise had just returned from a 5 year voyage while traveling at 0.81c. If the report meant 5.0 years of Earth time, how much time elapsed on the ship
A geiger-muller tube is a type of gas-filled radiation detector. It can detect particles like X-rays, alpha particles and beta rays (electrons). what is the density of the gas in this geiger tube
When the power is turned off on a turntable spinning at 78.0 rpm , you find that it takes 10.5 revolutions for it to stop while slowing down at a uniform rate. How long does it take to stop after the power is turned off
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