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A tire is filled with air at 15°C to a gauge pressure of205kPa. If the tire reaches a temperature of39°C, what fraction of the original air must be removed if the original pressure of205kPa is to be maintained?
The pendulum in a grandfather clock is made of brass and keeps perfect time at 20?C. How much time is lost in a year
A high diver of mass 50.0 kg jumps off a board 10.0 m above the water. what average force did the water exert on her
What is the least coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road.
or a given initial projectile speed, For what other launch angle will the projectile have the same range
When rebuilding her car's engine, a physics major must exert 450 N of force to insert a dry steel piston into a steel cylinder at a constant velocity. What is the normal force between the piston and cylinder
A group of particles is traveling in a magnetic field of unknown magnitude and direction. You observe that a proton moving at 1.20 km/s in the + x-direction experiences a force of 2.10×10-16 N in the + y-direction, What is the magnitude of the mag..
A frictionless pulley has the shape of a uniform solid disk of mass 4.00 kg and radius 28.0cm. A 3.60 kg stone is attached to a very light wire that is wrapped around the rim of the pulley, and the stone is released from rest. As it falls down, the w..
A continuous line of charge lies along an x axis, extending from x = +x0 to positive infinity. The line carries charge with the uniform linear charge density λ0. What are the magnitude and direction of the electric field at the origin.
A crate of 45.2-kg tools rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move when your force exceeds 310N. find the coefficient of static friction between the crate and ..
The Earth (5.98 x 10^24 kg) and the Moon (7.35 x 10^22) kg are separated by an average distance of 3.84 x 10^8 m
At the Earth's surface a projectile is launched straight up at a speed of 8.4 km/s. To what height will it rise
A bicycle is turned upside down while its owner repairs a flat tire on the rear wheel. determine the magnitude of the average angular acceleration of the wheel
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