Physics, 09.07.2019 04:20 nightwolf8999
The surface of the hollow passes through the center of the sphere and “touches” the right side of the sphere. the mass of the sphere before hollowing was m = 446 kg. with what gravitational force does the hollowed-out lead sphere attract a small sphere of mass m = 13 kg that lies at a distance d = 14 m from the center of the lead sphere, on the straight line connecting the centers of the spheres and of the hollow?
Answers: 1
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Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
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Physics, 22.06.2019 21:00
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The surface of the hollow passes through the center of the sphere and “touches” the right side of th...
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