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A satellite is in a circular orbit about the earth (ME = 5.98 x 1024 kg). The period of the satellite is 2.11 x 104 s. What is the speed at which the satellite travels?
A 5.81 10-5 H solenoid is constructed by wrapping 70 turns of wire around a cylinder with a cross-sectional area of 8.10 10-4 m2, Determine the change in the length of the solenoid
A piece of Nichrome wire has a radius of 5.00 x10-4 m. It is used in a laboratory to make a heater that uses 2.00 102 W of power when connected to a voltage source of 120 V. Ignoring an effect of temperature on resistance, estimate the necessary l..
Three radio-equipped plumbing vans are broadcasting on the samefrequency f0. Van 1 is moving east of van 2 with thespeed v, What is the frequency of each van as received by theothers
A light beam having a wavelength of 470. nm in air is directed into glycerine (n = 1.47). What is the frequency of the light in the glycerine
A Carnot-efficiency engine operating between a reservoir of liquid mercury at its melting point and a colder reservoir extracts 15.0 J of heat from the mercury and does 4.0 J of work during each cycle. What is the temperature of the colder reservo..
Astronauts walking on the Moon are seen "bounding" rather than walking normally. Why?
A sailor strikes the side of his ship just below the surface of the sea. He hears echo of the wave reflected from the ocean floor directly below 9 s later. How deep is the ocean at this point.
On planet Zog, Mr. Spock measures that it takes 1.47 s for a mass of 0.50 kg to hit the ground when released from rest from a height of 2.85 m. Calculate the size of the acceleration of gravity on that planet
A man is riding on a flatcar travelling at a constant speed of 9.10. He wishes to throw a ball through a stationary hoop 4.90 above the height of his hands in such a manner that the ball will move horizontally as it passes through the hoop.
Find out the acceleration of the crate if the applied force is 380 , the mass of the crate is 32 and the coefficient of kinetic friction is 0.42.
A child sits on the edge of a spinning merry-go-round that has a radius of 2.2 m. The child's speed is 4 m/s. What is the child's acceleration
While a person is walking, his arms swing through approximately a 45.0 degree angle in 0.420s, What is the acceleration of a 0.900 gram drop of blood in the fingertips at the bottom of the swing
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