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Question: A large aquarium of height 5.98 m is filled with fresh water to a depth of D = 2.40 m. One wall of the aquarium consists of thick plastic with horizontal length W = 7.10 m. By how much does the total force on that wall increase if the aquarium is next filled to a depth of D = 4.50 m?
What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 45 rpm (revolutions per minute) if the wheel's radius is 25.6 cm
A 35.0 kg person crawls across a 15.0 m long horizontal beam that has a mass of 15.0 kg. The beam has a support line that is at an angle of 65 degrees up from the horizontal.
What is the resistance of the wire in the blanket? Express your answer to two significant figures and include the appropriate units. How much current does the wire carry
A thin lens has a focal length of 10.00 cm for red light. If the index of refraction for the lens material tends to decrease with increasing wavelength
After reaching its maximum height, the ball moves into the hoop on its downward path, at 3.05 m above the ground. Using the principle of energy conservation,
Catapults date from thousands of years ago, and were used historically to launch everything from stones to horses. At what speed did the projectiles hit the wall
A stunt man drives a car off a 10 m high cliff at a speed of 20m/s. How far does the car land from the basis of the cliff
35 kg girl is bouncing on a trampoline. Throughout a certain interval after leaving the surface of the trampoline, her kinetic energy decreases to 170 J from 470 J. How high does she rise during this interval? Avoid air resistance.
Four linear polarizers are stacked so that each is at a 30 degree angle to the one before it, what is the intensity of the transmited light
The counterbalance w1 weighs 100 N. Find out the weight w2 and the angle α needed so that no force is exerted on the hip joint by the leg plus cast.
A camera has a lens with a focal length of 29.4 cm. When an object is placed 3.95 meters away is being photographed, how far from the film should the lens be placed
A train of mass 1500 metric tons runs along a straight track at 75 km/hr. What is the angular momenum of the train about a point on the track
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