Physics, 27.12.2019 02:31 ImHotRacerYT

Ahigh-speed flywheel in a motor is spinning at 500 rpm when a power failure suddenly occurs. the flywheel has mass 39.0 kg and diameter 80.0 cm. the power is off for 32.0 s and during this time the flywheel slows due to friction in its axle bearings. during the time the power is off, the flywheel makes180 complete revolutions.

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: 3

Show answers

Another question on Physics

Physics, 22.06.2019 14:20

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

Answers: 3

Answer

Physics, 22.06.2019 16:30

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)

Answers: 1

Answer

Physics, 22.06.2019 20:00

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature

Answers: 1

Answer

Physics, 22.06.2019 21:40

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.

Answers: 3

Answer

You know the right answer?

Ahigh-speed flywheel in a motor is spinning at 500 rpm when a power failure suddenly occurs. the fly...

Questions

Engineering, 15.12.2020 22:10

What is the primary responsibility of ABET? A. certifying engineering technologists and engineering technicians B. administering examinat...

Physics, 15.12.2020 22:10

A cylinder has a radius of 0.80 m. How much work is done by a gas in the cylinder if the gas exerts a constant pressure of 3.8 x 10^5 Pa on the piston...