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A gasoline engine by an efficiency of 0.40 generates 1800 W of power. If a liter of gasoline has an energy content of 3.7 × 107 J, how many liters of gasoline does the engine consume every hour?
A sample of helium behaves as an ideal gas as it is heated at constant pressure from 273 K to 383 K. what is the mass of helium present
What was the initial negative charge on one of the spheres, and what was the initial positive charge on the other? (Hint: Use charge conservation and solve for one of the initial charges. You would end up with a quadratic equation. The solutions g..
A body moving at .500c with respect to an observer disintigratesinto two fragments that move in opposite directions relative to their center of mass along the same line of motion as the original body. What velocities will the observer find
a 100 kg car travelling at 20 ms collides with a 100 kg car traveling at 8 ms in opposite direction a if the two cars
an electric dipole consists of charges 2e and -2e separated by 1.0 nm. it is in an electric field of strength 4.0 x 106
What is the strength in air of the electric field at a radialdistance of 0.70-cm from the middleregion of a 6.0-m long straight wirecarrying a uniform charge of 375.0 µC
An ideal monatomic gas expands isothermally from 0.530 m3 to 1.25 m3 at a constant temperature of 670 K. If the initial pressure is 1.20 105 Pa. Find the work done on the gas
A 0.200 kg projectile is fired with a velocity of +745m/s at a 2.0kg wooden block that rests on a frictionless table. The velocity of the block, immediately after the projectile passes through it, is +45 m/s. Find out the velocity with which the p..
A 35 N boy pushes down on the ground with a force of 10 N perpendicular to the surface of the ground. What is the magnitude of the force of the ground on the boy
A force vector has a magnitude of 594 newtons and points at an angle 37o of below the positive x axis. What are (1) the x scalar component and (2) the y scalar component of the vector.
An electron has a kinetic energy of 0.100 MeV. Find its speed according to classical and relativistic mechanics
A flight attendant pulls her 71 N flight bag a distance of 322 m along a level airport floor at a constant velocity. The force she exerts is 36 N at an angle of 53° above the horizontal.
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