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A rocket is fired in deep space, where gravity is negligible. In the first second it ejects 1/160 of its mass as exhaust gas and has an acceleration of 15.3 m/s^2 . What is the speed (v_gas) of the exhaust gas relative to the rocket? Express your answer numerically in kilometers per second.
A particle that carries a net charge of 9.58x10^(-5)C is held in a region of constant, uniform electric field, What is the potential difference between the particle\'s initial and final positions (Vf - Vi)
Time standards are now based on atomic clocks. A promising second standard is based on pulsars, which are rotating neutron stars (highly compact stars consisting only of neutrons).
A family ice show is held in an enclosed arena. The skaters perform to music playing at a level of 71.5 dB. What total sound intensity engulfs you
Two identical particles, each with a mass of 4.5 mg and a charge of 30 nC, are moving directly toward each other with equal speeds of 4.0 at an instant, How far apart will they be when closest to one another
two gliders on a level air track approach each other. One glider has a mass m1= 0.6 kg and a velocity v1= +4 m/s. Calculate the velocity of the joined gliders
A light stick with two masses attached to it is spinning about its center at 5 revolutions per minute. The length of the stick is 2.5 meters and the masses are 1.5 kg each.
A uniformly charged ring is 1.0 cm in radius. The electric field on the axis 3.5 cm from the center of the ring has magnitude 2.5MN/C
A car drives north at 46 for 10 and then turns east and goes 5 at 60. At last, it goes southwest at 30 for 6.0. What is the average velocity.
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.59 x 104 m/s, What is the orbital speed of the second satellite
Imagine a frictionless pulley (a solid cylinder) of unknown mass M and radius r = 0.200 m which is used to draw water from a well. A bucket of mass m = 1.50 kg is attached to a massless cord wrapped around pulley. The bucket starts from rest at th..
An orchid grower hears that the temperature is expected to fall below freezing overnight, so she puts a large barrel in her orchid greenhouse, How much heat left the water during the night
An ideal gas at 0 degrees Celsius consists of 1.0x10^23 atoms. 16J of thermal energy are added to the gas. What is the new temperature in Degrees Celsius
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