Physics, 17.12.2019 18:31 isabelacarraler

Ahigh-speed flywheel in a motor is spinning at 450 rpm when a power failure suddenly occurs. the flywheel has mass 37.0 kg and diameter 73.0 cm. the power is off for 35.0 s and during this time the flywheel slows due to friction in its axle bearings. during the time the power is off, the flywheel makes 180 complete revolutions. for related problemsolving tips and strategies, you may want to view a video tutor solution of rotation with constant angular acceleretion.

a. at what rate is the flywheel spinning when the power comes back on? (rad/s)
b. how long after the beginning of the power failure would it have taken the flywheel to stop if the power had not come back on? (s)
c. how many revolutions would the wheel have made during this time?

Answers: 2

Show answers

Another question on Physics

Physics, 21.06.2019 18:00

8. why do radio telescopes convert radio waves (analog signals) to electrical (digital) signals for analysis? (hint: what did the article say about the advantages of digital signals? )

Answers: 3

Answer

Physics, 21.06.2019 18:40

An observer that stands still as the electron moves by him, will observe

Answers: 3

Answer

Physics, 22.06.2019 01:30

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

Answers: 3

Answer

Physics, 22.06.2019 03:30

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

Answers: 1

Answer

You know the right answer?

Ahigh-speed flywheel in a motor is spinning at 450 rpm when a power failure suddenly occurs. the fly...

Questions