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A space laboratory is rotating to create artificial gravity, as the figure indicates. Its period of rotation is chosen so that the outer ring (rO = 2480 m) simulates the acceleration due to gravity on earth (9.80 m/s2). What should be the radius rI of the inner ring, so it simulates the acceleration due to gravity on the surface of Mars (3.72 m/s2)?
A VW Beetle goes from 0 to 60 mi/hr with an acceleration of +2.35 m/s2. Find the acceleration (in m/s2) of the dragster
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 15-g nail
When four people with a combined mass of 290 kg sit down in a car, they find that the car drops 0.50 cm lower on its springs. What is the frequency of the car's vibration
how much work is required to accelerate a proton from rest up to a speed of 0.957c, what would be the momentum of this proton
Two ships, A and B, leave port at the same time. Ship A travels northwest at 25 knots and ship B travels at 35 knots in a direction 40° west of south. What is the magnitude the velocity of ship
A motercycle has a mass or 2.50*102 kg. a constantforce is excerted on it for 60.0s. What is the change in momentum
A 3.0-kg 14-cm-radius cylinder, initially at rest, is free to rotate about the axis of the cylinder. A rope of negligible mass is wrapped around it and pulled with a force of 18 N.
In the figure below, the hanging object has a mass of m1 = 0.480 kg; the sliding block has a mass of m2 = 0.770 kg; and the pulley is a hollow cylinder with a mass of M = 0.350 kg, an inner radius of R1 = 0.020 0 m, and an outer radius of R2 = 0.0..
A student was given two forces and asked to find a single force that would produce equilibrium with the two forces. The two forces were given by providing one of the components and the angle the force made with the positive x axis. The two forces ..
A long, straight wire carrying a current of 316 A is placed in a uniform magnetic field that has a magnitude of 7.42 × 10-3 T. Find a point in space where the net magnetic field is zero
Two equal conducting spheres are located with their centers 0.14 meter apart. One is given a charge of 6 x 10-9 C, the other a charge of -8 x 10-9 C. Obtain the electrostatic force exerted on one sphere by other
Two charges are fixed in place. One charge is positive and has6.13 times the magnitude of the other charge, which is negative.The negative charge lies at the origin, and the positive charge isat x = +12.2 cm.
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