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A spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position. A 4.87-g pellet is placed against the compressed and latched spring. The spring latches at a compression of 5.91 cm, and it takes a force of 9.13 N to compress the spring to that point. Assume that the spring quits moving when it is back to its relaxed length. How much work is done by the spring when the latch is released and the pellet leaves the tube?
A 1.10 kg mass is at the center of a uniform spherical shell of mass 1.09 1020 kg and radius 1.05 106 m. Find the resultant gravitational force on the mass
When a missile is shot from one spaceship toward another, What is the relative velocity of the two ships
A barbell consists of two small balls, each with mass 600 grams (0.6 kg), at the ends of a very low mass rod of length d = 20 cm (0.2 m). The center of the barbell is mounted on the end of a low mass rigid rod of length b = 0.3 m, and this rod rot..
rate at which mechanical energy is transferred to the turbine blades, assuming 60 percent efficiency.
A proton moves at a speed of 995 m/s in a direction perpendicular to a magnetic field with a magnitude of 0.76 T
A 72- kg ice hockey player standing on a frictionless sheet of ice throws a 6.2- kg bowling ball horizontally with a speed of 3.1 m/s
You are lowering two boxes, one on top of the other, down the ramp by pulling on a rope parallel to the surface of the ramp. find the magnitude of the friction force on the upper box
A photon with energy E collides with a stationary mass m. What is the mass and speed of this particle
A charged sphere of mass 3.00E-04 kg is suspended from a string. Find the magnitude of the electric force
a race car is approaching a jump ramp with the ramp angle at 10 degrees and 20 meters long and is 3.47 meters off the ground, what is the minimum velocity the car can go to make the jump
Atomic physics, you begin with 227 over 89. Then there is an alpha decay, What isotope is left after EACH of the decays
1 an antenna is connected to a car battery. will the antenna emit electromagnetic radiation? why or why not? explain.2
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