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The component of the external magnetic field along the central axis of a 69-turn coil of radius 23.0 cm decreases from 1.90 T to 0.400 T in 1.70 s. If the resistance of the coil is 6.00 ?, what is the magnitude of the induced current in the coil?
At a temperature of 5800, hydrogen atoms in the solar atmosphere have typical random speeds of about 12. Assume that spectral-line broadening is simply the result of atoms moving toward us or away from us at this random speed, estimates thermal width..
An 150kg man climbs up a 1m high flight of stairs, What is the increase in the gravitational potential energy of the man-earth system
At t=0 a grinding wheel has an angular velocity of 25 rad/s. It has a constant angular acceleration of 35.0 rad/s^2 until a circuit breaker trips at time t = 2.10 s. From then on, it turns by an angle 431 rad as it coasts to a stop at constant ang..
A 45 dB sound wave strikes an eardrum whose area is 4.1 × 10-5 m2. How much energy is received by the eardrum per second
A particular banana contains 385 mg of potassium, of which a small fraction is the radioactive isotope _19^40 text (K) (see Appendix B). Approximation the activity of this banana because of _19^40 text (K).
The flywheel of an engine has a moment of inertia 2.20 {rm kg} cdot {rm m}^{2} about its rotation axis. What is its final kinetic energy.
A proton takes 99.0?s to complete one orbit around a 14.5 m diameter cyclotron. What's the cyclotron's magnetic field
If a woman lifts a 20.0 kg bucket from a well and does 6.00 kJ of work, how deep is the well? Suppose that the speed of the bucket remains constant as it is lifted.
When the electric power was turned off, the electric motor originally running at 1800 rpm comes to rest in 15.0 s. Find out the angular acceleration, the angular velocity at the end of 5.0 s, and the total angle turned through in 15.0 s.
A blackened, solid copper sphere that has a radius equal to 4.5 cm hangs in an evacuated enclosure whose walls have a temperature of 23°C. find the initial rate at which its temperature changes
A 67 kg person sits on a 3.5kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.8 cm in diam. Determine the pressure exerted on the floor by each leg of the chair; Assume the weight is evenly distributed.
The wheels of an automobile are locked as it slides to a stop from an initial speed of 30.0 m/s, approximately how long does it take the car to stop
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