Physics, 16.08.2021 21:00 pilararcos
A heat engine extracts 51 kJ from the hot reservoir and exhausts 30 kJ into the cold reservoir.
Part A) What is the work done?
Part B) What is the efficiency?
Answers: 2
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Amachine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. its acceleration is measured to have an amplitude of 5,000 mm/s with a fre- quency of 10 hz. compute the maximum displacement the machine undergoes during this oscillation.
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What is created when solids,liquids,an gases mix with one another
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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?
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An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0ยฐ below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?
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A heat engine extracts 51 kJ from the hot reservoir and exhausts 30 kJ into the cold reservoir.
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