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A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 6.44 10-2 kg/s. The density of the gasoline is 735 kg/m3, and the radius of the fuel line is 3.01 10-3 m. What is the speed at which the gasoline moves through the fuel line?
A ray of sunlight is passing from diamond into crown glass; the angle of incidence is 28.10°. Determine the angle between the refracted blue and red rays in the crown glass
he wavelength of an electromagnetic wave inside water (nwater = 1.33) is ? = 660 nm. find the wavelength of the same electromagnetic wave
Two pots are identical except that the flat bottom of one is aluminum, whereas that of the other is copper. find the temperature of the heating element on which the copper bottom rests
a 2 kg object attached to a horizontal string moves with constant speed in a circle on a frictionless horizontal surface. Find the radius of the circle
Bowling balls can be made from a variety of substances and are required to have a circumference of roughly 27.8 inches. compute the thickness of the shell
An ore car of mass 4 000kg rolls downhill on tracks from a mine. At the end of the tracks, 10 m lower in elevation, is a spring with k = 400 000 N/m. How much is spring compressed in stopping the ore car? Ignore friction.
A lightbulb is 48 cm from a convex lens, and its image appears on a screen located 31 cm on the other side of the lens. By how much is the image enlarged or reduced
A boy whirls a stone using an r-m long string in a horizontal circle h m above the ground. The string broke, and the stone flies off horizontally and strike the ground x m away.The velocity with which the stone flies off the circle is? The centrip..
three charges shown in figure from an equilateral trangle with 4.9 cm long sides what is the electrical potentialat the point indicted with the dot
A radio antenna broadcasts a 1.0 MHz radio wave with 29kW of power. What is the wave's intensity 33km from the antenna
A 5.50 g bullet moving at 688 m/s strikes a 860 g wooden block at rest on a frictionless surface. What is the resulting speed of the block
A loudspeaker of mass 25 is suspended a distance of = 1.60 below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of = 3.30.
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