Physics, 22.03.2021 15:20 raiderries
Daniel is standing a certain distance from a wall and claps. He hears the echo 4s later.
How far away is the wall? Remember that the sound has travelled to the wall and come back.
(Take the speed of sound in air to be 330 m/s).
Answers: 1
Physics, 23.06.2019 02:30
Asatellite with an orbital period of exactly 24.0 h is always positioned over the same spot on earth. this is known as a geosynchronous orbit. television,communication, and weather satellites use geosynchronous orbits. at what distance would a satellite have to orbit earth in order to have a geosynchronous orbit?
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Physics, 23.06.2019 02:40
The two metal spheres in the figure are connected by a metal wire with w switch in the middle. initially the switch is open. sphere 1, with the larger radius, i'd given a positive charge. sphere 2, with the smaller radius, is neutral. then the switch is closed. afterward, sphere 1 has charge q1, is at potential v1 and the electric field strength at its surface is e1. the values for sphere 2 are q2, v2, and e2. a. is v1 < ,> , or = to v2? explain. b. is q2 < , > , or = explain? c. is e1 < ,> ,or = to e2? explain?
Answers: 1
Physics, 23.06.2019 04:40
Abody covers a semicircle of radius 7cm in 5s .find its linear speed
Answers: 1
Daniel is standing a certain distance from a wall and claps. He hears the echo 4s later.
How far aw...
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