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An electron with speed vo= 2.61×107m/s is traveling parallel to an electric field of magnitude E= 1.03 × 104 N/C . How far will the electron travel before it stops? How much time will elapse before it returns to its starting point?
The first polarizer is completely vertical, the second is at 75 degrees with the vertical, and the third is at 25 degrees with the vertical. What is the final transmitted intensity if the light passes through these polarizers in the given order
A potter's wheel -- a thick stone disk of radius 0.500 m and mass 110 kg -- is freely rotating at 50.0 rev/min. Find the effective coefficient of kinetic friction between the wheel and the rag
An 8.70-kg block slides with an initial speed of 1.56m/s up a ramp inclined at an angle of 27.4 degrees with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.62. Use energy conservation to find the distance the ..
an object at rest explodes into three pieces of equal mass. one moves east at 20.0 ms while a second moves northwest at
Two kilomoles of a monatomic ideal gas are at a temp of 300K. The gas expands reversibly and isothermally twice its original volume. Calculate the work done by the gas. (Note that for an ideal gas U is proportional to T, so the change of U = 0 in ..
The mysterious Planet X has a radius of 5.50 x 106 mand an acceleration due to gravity of 13.0 m/s2 at its surface. Calculate its mass and average density
The rope makes an angle of 70° with respect to the vertical. What is the tangential speed of the ball.
The minimum distance required to stop a car moving at 38.0 mi/h is 41.0 ft. What is the minimum stopping distance for the same car moving at 68 mi/h, suppose the same rate of acceleration.
A 500-turn circular coil with an area of 0.0500 m^2 is mounted on a rotating frame, What is the instantaneous emf in the coil at the moment that the normal to its plane is parallel to the field
a neutron star is composed of neutrons and has a density that is approximately the same as that of a nucleus about 2.3
a speeder passes a parked police car at a constant speed of 34.9 ms. at that instant the police car starts from rest
In a certain automobile engine with an efficiency of 19.2%, combustion of gasoline in one cylinder releases 490 J of heat. Find the total mechanical power produced by all four cylinders, operating at 48 cycles/s, or 2880 rpm
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