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An electron moves from one plate to another across which there is a potential difference of 2000 V.
Find the velocity with which it strikes the positive plate.
Find the velocity if the electron is replaced by a proton which is moving from the positive toward the negative plate.
A beam of monochromatic light is diffracted by a slit of width 0.630 millimeter. Evaluate what is the wavelength of the light
A curve in a highway has radius of curvature 110 m and is banked at 3.4°. On a day when the road is icy, what is the safest speed to go around the curve
A golfer hits a shot to a green that is elevated 3.40 m above the point where the ball is struck. find the speed of the ball just before it lands
A 150lbf bucket of water is connected to a helicopter by a rope. The rope pulls on the bucket with a force of 1000N at an angle of 25 degrees to the right of vertically upward. Air resistance exerts a force of 350N horizontally to the left. What i..
A diver is practicing for a coming game. The height of the diving tower is 10 m (from the top of board down to water surface), What is the angle at which the diver enters the water
At what frequency does a 63uF capacitor have a reactance of 63 ohm
A string with a length of 0.7 m is fixed at both ends. find the frequency associated with this longest wavelength
A blue ball is thrown upward with an initial speed of 23.3 m/s, from a height of 0.7 meters above the ground. 2.9 seconds after the blue ball is thrown, What is the speed of the blue ball when it reaches its maximum height
Water flowing through a 1.8cm-diameter pipe can fill a 300L bathtub in 6.4 min. What is The speed of the water in m/s
Ball bearings are made by letting spherical drops of molten metal fall inside a tall tower -- called a shot tower -- and solidify as they fall. If a bearing needs 3.1 s to solidify enough for impact, how high must the tower be
A 70 g metal block moving at 200 cm/s slides across a tabletop a distance of 83 cm before it comes to rest. how much does the temperature of the block rise
A steel bicycle wheel (without the rubber tire) is rotating freely with an angular speed of 14.9 rad/s. What is the angular speed of the wheel at the higher temperature
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