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Explain how Einstein's contribution to understanding the force between the earth and the moon differed from Newton's. Include a brief statement of Einstein's explanation in your answer.
in the early 1900s robert millikan used small charged droplets of oil suspended in an electric field to make the first
A batter hits a 0.140-kg baseball that was approaching him at 30.0 m/s and, as a result, What is the average force exerted by the bat
assume the roller coaster (h1 = 32 m, h2 = 11 m, h3 = 20) passes point A with a speed of 3.50 m/s. If the average force of friction is equal to one fifth of its weight, with what speed will it reach point B? The distance traveled is 30m.
On a hot summer day, the temperature of air in Arizona reaches 113°F. What is the speed of sound in air at this temperature? (Enter your answer to four significant figures. The speed of sound at 0°C is 331 m/s. Use the conversion 0°C = 273 K as neces..
a 15 kg block is at rest on a level floor. a 415 g glob of putty is thrown at the block such that it travels
A wire loop of radius 0/5 m has a resistance of 2.0 ohms. A uniform magnetic field perpendicular to the plane of the loop increases from 0 to 2.0T in .25 s What is the average current induced in the loop?
A silver medallion is sealed within a transparent block of plastic. How far below the top surface would the medallion appear if the observer (not wearing goggles) and the block were under water
A satellite of mass 190 kilogram is launched from a site on Earth's equator into an orbit at 185 kilometer above the surface of Earth. Find the minimum energy necessary to place the satellite in orbit, assuming no air friction
a particle moving along the x axis in simple harmonic motion starts from its equilibrium position the origin at t 0
A 1500 kg car traveling at 90 km/h east collides with a 3000kg car travling at 60 km/h south. What is the speed of the cars after collision
Two converging lenses are separated by 23.60 cm. The focal length of each lens is 11.00 cm, Determine the final image distance relative to the lens on the right
A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.59 x 104 rad/s to an angular speed of 4.47 x 104 rad/s. In the process, the bit turns during 3.49 x 104 rad. assuming a constant angular acceleration, how long wo..
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