Physics, 18.08.2019 22:30 Carrchris021
The 4.5 cm long second hand on a watch rotates smoothly. what is its angular velocity? what is the speed of the tip of the hand?
Answers: 1
Physics, 22.06.2019 16:20, nessuhbae6722
What is the single most important equation in all of physics?
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Physics, 22.06.2019 16:40, Crxymia
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
The 4.5 cm long second hand on a watch rotates smoothly. what is its angular velocity? what is the...
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