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Problem: A man shoots a rifle. He and the gun have a combined mass of 90kg and have a recoil speed of 0.010 m/s. The bullet has a mass of 0.05 kg. Solve for the speed of the bullet.
The electric field of a sinusoidal electromagnetic wave obeys the equation E=?(375V/m)sin[(5.97×1015rad/s)t+(1.99×107rad/m)x]. What is the amplitude of the electric field of this wave
A proton traveling at 19.0° with respect to a magnetic field of strength 2.70 mT experiences a magnetic force of 7.2*10-17 N. Compute the proton's speed. Compute its kinetic energy.
How much energy can this capacitor store without breaking down
The maximum tension that a 0.5m string can tolerate is 14N. A 2.5kg ball is attracted to the string being whirled in a vertical circle. What is the maximum speed the ball can have at the top of the circle.
A roller coaster of mass 250kg has a speed of v=12m/s at point a, located at a height h=15m. The car can move without friction actiong between points a and b. How far does the car travel before coming to rest
For a safe re-entry into the Earth's atmosphere, the pilots of a space capsule must reduce their speed from 2.6 × 104 m/s to 1.1 × 104 m/s. For how long must they fire their engine
The time constant of an RC circuit is 2.6s. How much time (t) is required for the capacitor (uncharged initially) to gain one-half of its full equilibrium charge?
An isolated charged conducting sphere of radius 12.0 cm creates an electric field of 4.90 104 N/C at a distance 22.0 cm from its center. What is its surface charge density
A 350 g piece of metal at 100C is dropped into a 100 g aluminum cup containing 500 g of water at 15C. What is the specific heat of the metal
Waves on a 10 meter rope travel at 20 m/s. You shake the rope back and forth until you get a standing wave with a single antinode. find the wavelength and frequency of each standing wave
Suppose you have to move a heavy crate of weight 875 N by sliding it along a horizontal concrete floor. What is the magnitude Fp of the minimum force you need to exert on the crate to make it start sliding along the floor
A10.0 kg object sitting on a 30o slope is given a push by a horizontal force of 50.0 N for 2.50 s. How far uphill will the object be able to reach along the slope (no friction)
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