Physics, 06.10.2019 14:30 samymaria1344
An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough that a person inside is stuck to the wall and does not slide down when the floor drops away. the acceleration of gravity is 9.8 m/s 2 . given g = 9.8 m/s 2 , the coefficient Āµ = 0.521 of static friction between a person and the wall, and the radius of the cylinder r = 4.4 m. for simplicity, neglect the personās depth and assume he or she is just a physical point on the wall. the personās speed is v = 2Ļr t where t is the rotation period of the cylinder (the time to complete a full circle). find the maximum rotation period t of the cylinder which would prevent a 40 kg person from falling down. answer in units of s.
Answers: 1
Physics, 22.06.2019 10:30
Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?
Answers: 1
Physics, 22.06.2019 16:50
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35Ā°c by rejecting waste heat to cooling water that enters the condenser at 18Ā°c at a rate of 0.25 kg/s and leaves at 26Ā°c. the refrigerant enters the condenser at 1.2 mpa and 50Ā°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
Answers: 2
Physics, 22.06.2019 20:00
What is the name of the perceived change in a sound waveās frequency due to motion between the observer and the sound source?
Answers: 1
An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough t...
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