Physics, 04.03.2021 01:00 supermansabeast
A moon orbits the planet in a counterclockwise
direction, which direction is the velocity vector
pointing in this particular moment in time?
Which acts as the centripetal force in this case
and in which direction is it pointing in this
moment in time?
Answers: 2
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When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.
Answers: 1
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For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.
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The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.
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The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is
Answers: 1
A moon orbits the planet in a counterclockwise
direction, which direction is the velocity vector
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