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Question: A ball is thrown upward from the bridge with the speed of 48 ft/s. it misses the bridge on way down and lands in water 160 ft. find how long the ball rises, how high it goes, how long it is in the air, and its velocity when it strikes the water.
Jack and Jill are on two different floors of their high rise office building and looking out of their respective windows. What is the height between the two window ledges
q1. a rotating flywheel that is brought up at its maximum speed 3000 rpm stores how much energy? the flywheel is a
Find the total number of lines in a 2.90 wide diffraction grating whose third-order spectrum has the 640 hydrogen- spectral line at an angular position of 39.0.
An eagle is flying horizontally at 4.8 m/s with a fish in its claws. It accidentally drops the fish. How much time passes before the fish's speed doubles
A diver running 1.8 m/s dives out horizontally from the edge of a vertical cliff and 2.7 s later reaches the water below. How far from its base did the diver hit the water
A mover's dolly is used to transport a refrigerator up a ramp into a house. The refrigerator has a mass of 108 kg. What is the work done on the refrigerator by the machine
A disk has radius R = 1.20 cm. Its surface charge density is 1.70 x 10-6 C/m2 from r = 0 to r = R/2 and 9.10 x 10-7 C/m2 from r = R/2 to r = R, What is the total charge (in C) on the disk
Two billiard balls of equal mass undergo a perfectly elastic head-on collision. what will be their speeds after the collision
a person who weighs 705 n is riding a 98-n mountain bike. suppose the entire weight of the rider and bike is supported
A beam contains 3.0 x 106 doubly charged positive ionsper cubic centimeter, all of which are moving north with a speed of5.4 x 105 m/s. What is the magnitude of the currentdensity?
A temperature controller designed to work in an atmosphere containing steam a bimetallic strip of brass and steel built connected at their ends by rivets. Each metal has 2.0 mm thick. At 20 ° C, the strip is 10.0 cm long and is straight.
What is the speed of the helium atoms in the tank.
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