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At the local swimming hole, a favorite trick is to run horizontally off a cliff that is 8.3m above the water. One diver runs off the ede of the cliff, tucks into a "ball" and rotates on the way down with an average angular speed of 1.6 rev/s. Ignore air resistance and determine the number of revolutions she makes while on the way down.
A vertical spring, k= 305N/m, vibrates with amplitude of 28cm when.26kg hangs from it. What equation describes the motion as a function of time
a spaceship approaches earth with a speed 0.38c. a passenger in the spaceship measures his heartbeat as 72 beats per
Given two masses, m1 = 18 kg and m2 =12 kg, m1 is moving with avelocity v1 colliding with m2, which is suspended by a string of length 7 m. The two masses are stuck together as the result of thecollision. The compound system swings to the right, p..
Two atmospheric sound sources A and B emit isotropically at constant power. find the ratio of the larger power to the smaller power
A particle with a charge of -60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 20.0 cm and outer radius 24.0 cm, Calculate the speed of the proton
An object of mass 2.00 kg is oscillating freely on a vertical spring with a period of 0.540 s, Find the spring constant k and Find the unknown mass
a 90-nm-thick coating is applied to the lens. what must be the coatings index of refraction to be most effective at 480
two 1.5-cm-diameter disks face each other 2.0 mm apart. they are charged to plusmn 9.0 nc.part a what is the electric
Two tugboats pulls a disabled supertanker. Each tug exerts a constant force of 1.80x106 N, What is the total work they do on the supertanker
Look at the thin soap film interference pattern in the picture for conceptual question 28-11. Why are the colors in horizontal stripes instead of circles or crazy swirls or vertical stripes?
Calculate the edge length of a cube that has the same volume as a sphere of radius 4.0 cm. How much greater is the surface area of the cube than that of the sphere
An object is dropped from rest from a height of 3.9 107 m above the surface of the Earth. If there is no air resistance, what is its speed when it strikes the Earth
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