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The weather pictures that you see every day on TV come from a spacecraft in a stationary position relative to the surface of Earth, 35,700 km above EarthA? 1s equator. Explain how it can stay in exactly the same position day after day. What would happen if it were closer? Farther out?
What volume is occupied by 1 mole of an ideal gas at a pressure of 1.00 atm and a temperature of 0°C
What will be the temperature of the gas at equilibrium? What volume will it occupy? Use the ideal gas law to determine the equilibrium pressure. How many gas particles are in each drum at equilibrium
A ray is incident on a sheet of transparent material by parallel sides. The angle of incidence is 60° and the thickness of the sheet is t = 1.40 cm. As the ray passes during the sheet, it is displaced x = 0.650 cm from its original direction of motio..
An unknown mass of tin is heated to a temperature of 202 C. It is placed into 200 g of water which is in a 100 g copper cup initially at 10 C. How much heat is gained by the cup and the water
The windows in an office building are 4.0 m by 5.0 m. On a stormy day, air is blowing at 30m/s past a window on the 53rd floor. Discover the magnitude and direction of the net force on the window. The density of air at that height is 1.23 kg/m3.
Two point charges 2.0cm apart have an electric potential energy of -118.8μJ. The total charge is 25 nC. What are the two charges?
A man wears contact lens with a focal length f = -8.5 meter. Is this person farsighted or nearsighted? Explain. Find the man's far-point distance without the contacts
a 200 g block attached to a horizontal spring is oscillating with an amplitude of 2.0 cm and a frequency of 2.0 hz.
A ball is thrown straight up with a speed of 21.5 m/s. A second ball is thrown up 1.52 seconds later and hits the first ball just the first ball reaches its maximum height. What was the magnitude of the velocity of the second ball
A converging lens:
A 120g cue ball moving at 0.35m/s strikes a stationary target ball with the same mass. Find the system's center-of-mass velocity before the collision
the near and far points of a person are at 40cm and 250cm respectively. find the power of the lens heshe shoeld use
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