Physics, 22.08.2019 18:20 constipatedcow18
Three children are riding on the edge of a merry‑go‑round that has a mass of 105 kg and a radius of 1.40 m . the merry‑go‑round is spinning at 20.0 rpm. the children have masses of 22.0, 28.0, n 33.0 kg. if the 28.0 kg child moves to the center of the merry‑go‑round, what is the new angular velocity in revolutions per minute?
Answers: 3
Physics, 22.06.2019 19:30
Which describes increasing the efficiency of energy resource
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Physics, 22.06.2019 19:40
It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc
Answers: 1
Physics, 23.06.2019 00:50
A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping.the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?
Answers: 3
Physics, 23.06.2019 05:00
Acid rain is caused by human activity. select the best answer from the choices provided t f
Answers: 2
Three children are riding on the edge of a merry‑go‑round that has a mass of 105 kg and a radius of...
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