Physics, 07.12.2020 08:30 blackbetty79
1. A record with a radius of 0.3m spins in a clockwise circle with a centripetal
acceleration of 4.7 m/s2. How long does it take the record to make one revolution?
(Hint: Find tangential velocity first!)
Answers: 3
Physics, 21.06.2019 22:10, edjiejwi
Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.
Answers: 3
Physics, 21.06.2019 22:30, tladitidimatso1783
A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?
Answers: 1
Physics, 23.06.2019 06:30, JANA279
If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be a. equal to the weight of the car. b. less than the force of friction exerted upon the car. c. equal to the force of friction exerted upon the car. d. greater than the weight of the car.
Answers: 1
1. A record with a radius of 0.3m spins in a clockwise circle with a centripetal
acceleration of 4....
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