What is the pressure exerted by a column of fresh water 10m high
(p=1000kg/m3 and g=10m/s)...
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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".
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Physics, 22.06.2019 17:30
Which planet do you think would be easiest for humans to colonize some day?
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Physics, 22.06.2019 23:00
In which of these cases are the two wave points considered to be in phase with each other?
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