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A chamber with a fixed volume of 1.0 m 3 contains a monatomic gas at 3.00*10 2 K. The chamber is heated to a temperature of 6.00*10 2 K. This operation requires 20.0 J of heat. (Suppose all the energy is transferred to the gas.) How many gas molecules are in the chamber?
a member of an aircraft maintenance team crew wears protective earplugs that reduce the sound intensity by a factor of
A ladder weighs 150 N, is 5m long, and is leaning against a frictionless wall at an angle of 30* with the horizontal. Draw an extended freebody diagram of this situation
Monochromatic light is incident on a diffraction grating and the first maximum is observed at an angle 5.2 degrees. At what angle is the 4th maximum seen
Four or five gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. Use the following specific heat capacity data to resolve which block will increase its temperature the most.
A uniform 1.3 kg rod that is 0.8 m long is suspended at rest from ceiling by two springs, one at each end of the rod. Both springs hang straight down from the ceiling.
people often use the term energy crisis implying that we are running out of energy. how can this be if energy is
A charge of -4.26 micro-Coulombs is fixed at the center of a compass. find direction of the net electrostatic force acting on the charge
compass needle points 25 degrees E of N outdoors. However, as it is placed 17 cm to the east of a vertical wire inside a building it points 61 degrees E of N. What is the magnitude of the current in the wire? The earth field there is 0.50X10^-4 T ..
A dartboard with a mass of 2.2kg is suspended from the ceiling such that it is originally at rest. A 0.030kg dart is thrown at the dartboard with a velocity of 1.2m\s. After the dart hits the dartboard, the dart and the board initially move by a velo..
A fax machine uses 0.105 Amp of current in its normal mode of operation, but only 0.071 Amp in the standby mode. Calculate how much more energy is used
a doubly charged helium atom whose mass is 6.6 10- 27 kg is accelerated by a voltage of 2400 v.what will be its radius
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision. If they skid for 5.4 seconds before stopping, how far did they skid?
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