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The air inside a bicycle tire pump has 206 joules of work done on it as 78.6 joules of heat is conducted away from it. What is the change in internal energy of the air?
Suddenly this mass is struck by another 2.00-kg object traveling along the x-axis at 3.00 m/s, and the two masses stick together.
The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. The mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain by the block and tackle pulley system. What is the work done..
A proton with kinetic energy of 2.30 × 106 eV is fired perpendicular to the face of a large plate that has a uniform charge density, From what distance should the proton be fired so that it stops right at the surface of the plate
A 20 times telescope has a 12{rm cm}diameter objective lens. What minimum diameter must the eyepiece lens have to collect all light rays from an on-axis distant source.
Some extreme sport enthusiasts have been know to jump off the top of El Capitan, It is very important that the parachute be far away from the cliff when opened. How far is the jumper from the cliff when opening the parachute
A mass m of a metal with heat capacity cm at initial temperature TM is added to the volume V of a liquid with density p, find the final temperature of the system
determine the length of the wire.
The force on a string is 198 N and the string's linear mass is 1.9 kg/m. What is the speed of waves on the string
What diameter must a copper wire have if its resistance is to be the same as that of an equal length of aluminum wire
One kilomole of an ideal gas undergoes a free expansion, tripling it's volume. What is the change of entropy of the universe
How high from the surface of the earth must an object be raised, What minimum speed is needed by the object to ascend to this height
Water is moving at a speed of 7.55 m/s through a fire hose with an internal diameter of 5.99 cm. What is the diameter of the nozzle
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