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A mass on a spring is observed to complete 15 oscillationsin 30 seconds. What are the period(seconds) and the frequency(Hz) of motion? If the size of the mass were tripled, what values would the period and the frequency have? If the spring constant were tripled, what values would the period and frequency have?
Nitrogen and oxygen in their liquid states have densities only 0.80 and 0.90 that of water. Atmospheric pressure is due primarily to weight of nitrogen and oxygen gas in the air. If atmosphere liquefied would its depth be greater or less than 10.30 m..
A soap film whose index of re%uFB02ecetion is 1.33 is suspended in air. When sunlight strikes the film nearly perpendicularly, Find the thickness of the film
A football player with a mass of 87 kg and a speed of 2.1 m/s collides head-on with a player from the opposing team whose mass is 120 kg, Find the speed of the players after the collision
Determine the specific heat capacity of an unknown sample of metal.
A grandfather's clock is calibrated at a temperature of 20 C. The pendulum is a thin brass rod with a heavy mass attached to the end. On a hot day, when the temperature is 30 C, does the clock run fast or slow? How much time does it gain or lose i..
A 67 kg person sits on a 3.5kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.8 cm in diam. Determine the pressure exerted on the floor by each leg of the chair; Assume the weight is evenly distributed.
A uniform plank of length 5.40 m and weight 217 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 417 N walk on the overhanging part of the plank before it immedia..
A neutron (mass 1 u) strikes a deuteron (mass 2 u) and the two combine to form a tritium nucleus. What was the velocity of the deuteron
Your eye (diameter 2.5 cm) is able to focus the image of a tree on your retina. What is the size of the image of the tree on your retina
A 4.35-g bullet is moving horizontally with a velocity of +342 m/s, where the sign + indicates that it is moving to the right, What is the velocity of the second block after the bullet imbeds itself
The bullet passes right through and emerges on the other side with a speed of 100 m/s, and the saxophone is given a speed of 4.8 m/s.
The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the positive direction. From what height did the student fall? assume that the only force acting during the collision is that due to the ground.
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