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Q1. An electron with a speed of 6.12 × 108 cm/s in the positive direction of an x axis enters the electric field of magnitude 2.70 × 103 N/C, travelling along a field line in the direction that retards its motion. (a) How far would the electron travel in the field before stopping momentarily, and (b) how much time would have elapsed?
Q2. Yusef pushes a chair of mass = 51.0 across a carpeted floor with a force (the subscript 'p' here is lowercase and throughout the question) of magnitude = 170 directed at = 35.0 below the horizontal. The magnitude of the frictional force between the carpet and the chair is = 99.8.
What was an initial speed of the ball
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In a nebula, the amount of interstellar extinction in the visible wavelength band is 1.1 magnitudes. The thickness of the nebula is estimated to be 16 pc and it is located 458 pc away.
Assume, instead, that the observer had been moving away from Earth with a speed of 0.80c. How much time would observer have measured for the car to be filled in this case.
What is the horizontal distance x to the base of the wall supporting the mirror of the near point on the floor that can be seen reflected in the mirror . What is the speed of the third fragment? Overlook effects due to gravity.
Find out the speed of the satellite
A typical Major League fastball is thrown at about 99 mph and with a spin rate of 103 rpm. If the distance between the pitcher's point of release and the catcher's glove is exactly 65.5 ft, how many full turns does the ball make between release and c..
The resistance of a copper wire of length L meter is 0.1 ohms. If the diameter of the wire is 0.045cm, find out its specific resistance.
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The linear impulse delivered by the hit of a boxer is 248 N • s during the 0.373 s of contact. What is the magnitude of the average force exerted on the glove by the other boxer? React in units of N
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How greatly time elapses before the compass hits the ground
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