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When it is burned, 1 gallon of gasoline produces 1.30×108 of energy. A 1300 car accelerates from rest to 36.0 in 10.0 . The engine of this car is only 15.0 (which is typical), meaning that only 15.0 of the combustion energy goes into accelerating the car. The rest goes into things like heating up the engine and exhaust gas
A. How many gallons of gasoline does the car use during its acceleration?
B. How many such accelerations will it take to burn 1 gallon of gasoline?
Two identical traveling waves, moving in the same direction, are out of phase by ?/4.0 rad. What is the amplitude of the resultant wave in terms of the common amplitude ym of the two combining waves
a typical cell membrane is 7.1 nm thick and has an electrical resistivity of 1.3 x 107 m. if the potential difference
How much energy is necessary to place three charges, each of 3.0 micro Coulomb's, at the corners of an equilateral triangle of side 2 cm.
To listen to a radio station, a certain home receiver must pick up a signal of at least 1.0X10^-10 W.If the radio waves have a frequency of 93MHz, how many photons must the receiver absorb per second to get the station?
A 72-kg fisherman in a 133-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 4.2 m/s, find the velocity of the boat after the package is thrown
A 24.00 kg child is on a swing that hangs from 1.6-m long chains. What is her highest speed if she swings out to a 45° angle.
The magnetic field of an electromagnetic wave in a vacuum is B_ z = ( 4.0mu T )sin( 1.0×107 x - 2 pi f t) , where x is in m and t is in s. what is the wave's electric field amplitude
place a test lead in one of the big lab magnets and plug both ends in the voltmeter so that it measures voltage on the
throughout the process the mechanical device pushing the piston to compress gas is found to expend 4 kJ of energy. What is the magnitude of the heat flow between heat reservoir and the gas and in what direction does the heat flow occur.
q1. an object weighs 302 n in the air. when tied to a string connected to a balance and immersed in water it weighs 220
plan a picutre showing Mary's displacment due to rowing, her displacemnet due to the river's motion, and her net displacement.
Jonathan and Jane are sitting in a sleigh that is at rest on frictionless ice. Jonathan's weight is 850N, Jane's weight is 550N , Calculate the magnitude of the sleigh's horizontal velocity after they jump out
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