Starting from rest, a disk rotates about its central axis with constant angular acceleration. in 5.0 s, it rotates 25 rad. during that time, what are the magnitudes of:
(a) the angular acceleration,
(b) what is the instantaneous angular velocity of the disk at the end of the 5.0 s?
(c) the average angular velocity for first 5 s?
(d) with the angular acceleration unchanged, through what additional angle will the disk turn during the next 5.0 s?
Answers: 2
Physics, 21.06.2019 23:00
Will you chech and finish these for me, because i am stumped with them.
Answers: 1
Physics, 22.06.2019 12:00
If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?
Answers: 1
Physics, 22.06.2019 14:10
Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
Answers: 3
Physics, 22.06.2019 16:40
Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel
Answers: 3
Starting from rest, a disk rotates about its central axis with constant angular acceleration. in 5.0...
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