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A star ship moving toward Earth with a speed of 0.78 c launches a shuttlecraft in the forward direction. The shuttle, which has a proper length of 12.3 m, is only 6.27 m long as viewed from Earth. What is the speed of the shuttle relative to the star ship?
Two astronauts on opposite ends of a space ship are comparing lunches. One has an apple, the other has an orange. What is the final speed and direction of the apple in this case
An observer moving at a speed of 0.995c relative to a rod measuresits length to be 1.90m and sees its length to be oriented at 25.00degrees with respect to the direction of motion. What is the proper length of the rod
An old wooden tool is found to contain only 18% of 146C that a sample of fresh wood would. How old is the tool
An unknown material has a normal melting/freezing point of -26.3 ° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C °). What is the latent heat of fusion of the unknown material
A spring loaded gun is used to launch a ping pong ball (mass 4g) at an angle of 50 degrees with the horizontal. how far does the ping pong travel if it is launched from the ground
A uniform cylinder of mass m=8.26 kg and radius R=0.147 m is released from rest on an inclined plane (theta=42.4 deg), What is the magnitude of the angular velocity just before the cylinder reaches the horizontal surface
A bullet is fired horizontally from a 100 m, t all building with a speed of 900 m? How long will it take to hit the ground?
A circular coil enclosing an area of 160 cm2 is made of 190 turns of copper wire. what is the average current in the coil during that time
A converging lens with a focal length of 17.5 cm and a diverging lens are placed 25.5 cm apart, with the converging lens on the left, What is the focal length of the diverging lens
at a steady laminar flow through a tube of radius of 1cm the volume flow rate is 30 liters of water during 1 minute.
X rays diffract from a crystal in which the spacing between atomic planes is 0.179nm. The second-order diffraction occurs at 51.0 degrees. What is the angle of the first-order diffraction?
A monatomic ideal gas that is initially at a pressure of 1.41 * 10^5 Pa, How much work is done by the gas during the compression
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