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In 2.0 minutes, a ski lift raises 5 skiers at constant speed to a height of 140 m. The average mass of each skier is 65 kg. What is the average power provided by the tension in the cable pulling the lift?
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A point charge +2.40 is held stationary at the origin. A second point charge -4.30 moves from the point = 0.135 , = 0 , to the point = 0.270 , = 0.270. How much work is done by the electric force on q2
The space shuttle is in a 200-mile-high orbit. What is the shuttle's orbital period
A jet of water squirts out horizontally from a hole near the bottom of the tank, What is the height, h, of the water level in the tank
W hat least energy an incident alpha particle must have to penetrate the gold nucleus. What is the direction of the carbon atom after the collision.
the position of an object moving in a straight line is given by x= 5+3.0t - 40t^2 -20t^3, where x is in meters and t in seconds. a)What is the position of the object at t=1,2,3 and 4 s
A juggling bag is thrown straight up into the air and is caught 3 s later, What is the initial velocity of the bag
A 5.78 cm long rod in the shape of a rectangular solid has cross section dimensions 28.7 mm x 42.6 mm. What is the current in the block
A golf ball rolls off the top of a flight of concrete steps of total vertical height 2.40m. what is the bounce height on the fourth bounce
q1. at a factory a noon whistle is sounding with a frequency of 491 hz. as a car travelling at 78 kmh approaches the
Three electrons are aligned on a straight line and separations between them are 1.0mm. What is the electric potential energy of the center electron
A thin, square, conducting plate 51.5 cm on a side lies in the xy plane. A total charge of 4.25 10-8 C is placed on the plate. Find the charge density on each face of the plate
Determine its average velocity for this trip. conclude the car's displacement.
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