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Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun, but a much smaller diameter. If you weigh 650 N on the earth, what would you weigh on the surface of a neutron star that has the same mass as our sun and a diameter of 20.0 km?
A 12.0 resistor, 10.0 mH inductor, and a 50.0 µF capacitor are connected in series to a 55.0 V (rms) source having variable frequency. Find out the energy delivered to the circuit during one period if the operating frequency is twice the resonance..
A 1 025-kg satellite orbits the Earth at a constant altitude of 98-km. What is the change in the system's potential energy
A particular engine has 14.8% efficiency and is capable of doing work at a rate of 253 horsepower. At what rate will this engine exhaust heat
A 2.27-kg block (M1) and a 5.87-kg block (M2) are connected by a massless string. Applied forces, F1 = 10.1 N and F2 = 4.83 N, act on the blocks, What is the net force acting on M1
Draw a free body diagram for each situation and find the magnitude of the larger of the two individual forces in units of N. Find out the magnitude of the smaller of the individual forces in units of N.
In the Soapbox Derby, young participants build non-motorized cars with very low-friction wheels, What is the maximum possible acceleration of a car moving down this stretch of track
In a crash test, a 1100 kg car slams into a concrete wall at 17.1 m/s and comes to rest in 0.275 s. a)Find out the magnitude of the impulse delivered to the car.b) Find the average stopping force.
A 60.0-g object is attached to a horizontal spring with a force constant of 15.0 N/m, What is the velocity of the object when it is halfway to the equilibrium position if the surface is frictionless
Moon effect. Some people believe that the Moon controls their activities. If the Moon moves from being directly on the opposite side of Earth from you to being directly overhead, by what percentage does (a) the Moon's gravitational pull on you inc..
the record of 203.1 km/h for speed skiing set by franz weber at velocity peak in colorado was achieved in a mountain slope inclined downward at 51 degrees. what is the rate at which gravity does work on the skier
question1a boat crosses a river of width 171 m in which the current has a uniform speed of 1.51 ms. the pilot maintains
A hunter on a frozen, essentially frictionless pond uses a rifle that shoots 4.20g bullets at 975m/s. Find the recoil speed of the hunter if he fires the rifle horizontally
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