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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. 2. 2. Saturn has a radius of about 9.0 earth radii, and a mass 95 times the Earth’s mass. Estimate the gravitational field on the surface of Saturn compared to that on the Earth. Show your work.
q1. an electric force of 4.0 n exists between two objects separated from each other by a distance of r. if the distance
You propose a new temperature scale with temperatures given in ?M. You define 0.0 ?M to be the normal melting point of mercury, What is the normal boiling point of water
A uniform plank of length 5.5 m and weight 205 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 447-N walk on the overhanging part of the plank before it just ..
A submarine is 308 m horizontally out from the shore and 141 m beneath the surface of the water. find the height of the building
Find the slit width. compute the coefficient of kinetic friction between the slide and the child.
Find out an average acceleration of the motorcycle
A 23-g lead bullet is shot with a speed of 320 m/s into a wooden wall. Assuming that 60% of the kinetic energy is absorbed by the bullet as heat (and 40% by the wall), what is the final temperature of the bullet
The image of a very distant car is located 17 cm behind a convex mirror. what is the radius of curvature of the mirror
A stone is thrown vertically upward with a speed of 12.3 m/s from the edge of a cliff 84.6m high. What is the speed just before hitting.
A radio station with a power of 16kW sends out an omnidirectional wave at 2.1MHz. What is the electromagnetic wave's wavelength
a 30-cm tall (height) ad 4.0 in diameter plastic tube has a sealed bottom. The mass of the tube if 30.0g. What is the density of the liquid
Two identical diverging lenses are separated by 18 cm. The focal length of each lens is -8.0 cm. Determine the final image distance relative to the lens
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