Physics, 23.10.2020 14:00 jinjermaxinejohnston
a) Mr. Mack rides his bike to school every morning. He starts North for a distance of 3 miles and then rides East for a distance of 2 miles. The time his trip takes is 0.25 hours. What is Mr. Mack’s average speed during his commute
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Physics, 21.06.2019 22:00
Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.
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Physics, 22.06.2019 12:20
What is the coefficient of kinetic friction μk between the block and the tabletop?
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Physics, 22.06.2019 16:40
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
Physics, 22.06.2019 23:00
Why does gravity have a lesser than grater effect on higher altitudes?
Answers: 2
a) Mr. Mack rides his bike to school every morning. He starts North for a distance of 3 miles and th...
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