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A planet of mass m = 4.95 × 1024 kg is orbiting in a circular path a star of mass M = 5.55 × 1029 kg. The radius of the orbit is R = 7.55 × 107 km. What is the orbital period (in Earth days) of the planet Tplanet?
a 6500-kg satellite is in a circular earth orbit that has a radius of 3.4 x 107 m. a net external force must act on the
a single infinite sheet of charge is aligned on the y axis. a point charge of -6.4 micro-coulombs is placed to the
Estimate the volume of your body. (Consider your body to be a cylinder having a radius of about 6 inches (or 0.15 m) and a height of about 1.5 meters
The position of a particle is given in cm by x = (7) cos 9t, where t is in seconds. Discover the maximum acceleration of the particle. Discover the maximum speed.
A -kg box is being lifted by means of a light rope that is threaded through a single, light, frictionless pulley that is attached to the ceiling, what average power is delivered by the person pulling on the rope
A block of mass M = 5.60 kg, at rest on a horizontal frictionless table, is attached to a rigid support by a spring of constant k = 6390 N/m.Determine the amplitude of the resulting simple harmonic motion
A train is traveling away from you at 120 km/h. The train blows its400-Hz whistle. Take the speed of sound to be 340 m/s. What frequency do you hear
A wave on the surface of the ocean with wavelength 44m is travelingeast at a speed of 18m/s relative to the ocean floor. If on, this stretch of ocean surface, a powerboat is moving 15m/s (relative tothe ocean floor), how often does the boat encoun..
An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 400-g sample of silver at an initial temperature of 88°C is placed in the water. The stirrer is used to stir the mixture gently until it reaches its final equilibriu..
A metal rod with a length of 26.0cm lies in the xy-plane and makes an angle of 34.5? with the positive x-axis, What is the magnitude of the emf induced in the rod
A generator has a square coil consisting of 288 turns. The coil rotates at 117 rad/s in a 0.218-T magnetic field. What is the length of one side of the coil
A new space shuttle takes {d} days to travel from the Earth to the Moon once it leaves Earth's orbit. Estimate the spacecraft's average speed in kilometers per hour
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