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A satellite of mass 310 kg is launched from a site on the Equator into a circular orbit at 8000 km above Earth's surface. DATA: Rearth=6.38×106 m. a) What is the acceleration of gravity at this altitude? b) What is the speed of the satellite? c) What is the period of the orbit?
A freezer is used to freeze 2.0 L of water completely into ice. The water and the freezer remain at a constant temperature of T = 0 C, Determine the change in the entropy of the freezer
a block 20cm wide by 60 cm long balances (symetrically on a similar block which is fixed to the ground. What is the mass of the upper block
A large cruise ship of mass 6.80 107 kg has a speed of 12.8 m/s at some instant. what is the ship's kinetic energy at this time
q1. a 0.850 kg block is attached to a spring with spring constant 16.0 nm. while the block is sitting at rest a student
A rectangular plate has a length of (20.4 0.2) cm and a width of (8.7 0.1) cm. Calculate the area of the plate
How many cubic centimeters are in a cubic kilometer? The speed of sound in air at sea level is around 340m/s. Express this speed in mi/hr. The speed of light in a vacuum is about 3108m/s. Express this speed in both mi/hr and miles per second.
A neon sign utilizes a step-up transformer to run at 6000 V on the 120 V from the wall outlet. how many turns does the secondary coil have
Two 1000 kg cars drive east; the first moving at 25 m/s, the second at 15 m/s. What is the magnitude of the total momentum of the system
A stamp collector is viewing a stamp with a magnifying glass held next to her eye. What is the refractive power of a magnifying glass that has an angular magnification of 7.5
A block of mass m is initially at rest on a frictionless surface. At time t = 0, an increasing force given by F = kt2 is applied to the block. Find the velocity and the displacement of the block as a function of time and graph x and v versus t.
An electron has an initial, vertical velocity v0, y=.0001 c when it enters a uniform, horizontal electric field, E=0.5 x (x hat). how far will the electron be deflected
A 1200 kg car rounds a corner of radius r = 45m. If the coefficient of static friction between the tires, what is the greatest speed the car can have in the corner without skidding
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