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
Physics, 22.06.2019 00:40, naomicervero
The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
Answers: 1
Physics, 22.06.2019 06:20, walmartislife
Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question
Answers: 1
Ahigh-speed flywheel in a motor is spinning at 500 rpm when a power failure suddenly occurs. the fly...
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