Physics, 24.11.2021 14:00 tdluong157
A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotating at 9.50 rev/s; 45.0 revolutions later, its angular speed is 19.0 rev/s. Calculate (a) the angular acceleration (rev/s2), (b) the time required to complete the 45.0 revolutions, (c) the time required to reach the 9.50 rev/s angular speed, and (d) the number of revolutions from rest until the time the disk reaches the 9.50 rev/s angular speed.
Answers: 1
Physics, 22.06.2019 05:00, heavyhearttim
Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?
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Physics, 22.06.2019 15:30, haha81
Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.
Answers: 2
A disk rotates about its central axis starting from rest and accelerates with constant angular accel...