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The planet Mars, our moon, and Halley's comet all
A) reflect the sun's ligh...
Physics, 28.02.2021 06:40 amorrison10181
HELP PLEASE
The planet Mars, our moon, and Halley's comet all
A) reflect the sun's light.
B) are older than the earth.
C) have highly elliptical orbits.
D) were formed from collisions with the earth.
Answers: 3
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Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.
Answers: 2
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Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero
Answers: 3
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What is the relationship between wavelength of light and the quantity of energy per photon?
Answers: 2
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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
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