Physics, 20.11.2019 20:31 mjessen119
Aturntable is rotating at 33 1/3 rpm. you then flip a switch, and the turntable speeds up, with constant angular acceleration, until it reaches 78 {rpm}. you are now given an additional piece of information: it takes five complete revolutions for the turntable to speed up from 33 1/3 {rpm} to 45 {rpm}. which of the following equations could you use to directly solve for the numerical value of the angular acceleration alpha? from the angular equation which one will be the answer 1,3 or omega square=omega square initial+2a(final angle- intial angle)
Answers: 2
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Physics, 22.06.2019 06:30
Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.
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You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a Γ b = 98k. what is the y-component of vector b?
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Aturntable is rotating at 33 1/3 rpm. you then flip a switch, and the turntable speeds up, with cons...
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