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An inductor used in a dc power supply has an inductance of 22.0 H and a resistance of150 Ω. It carries a current of 0.300 A,
(a) Calculate what is the energy stored in the magnetic field?
(Answer in J)
(b) Find at what rate is thermal energy developed in the inductor?
(in W)
At the distance of the earth from the sun, the pressureexerted by sunlight is about 10-5 Pa. what acceleration does this force give it
A 3.00 kg block is released from rest at the elevated end A of a frictionless track that slopes down to a point B and continues horizontally to a point D, Find the work done on the block by the normal force exerted by the track
The rotational velocity of a merry-go-round increases at a constant rate from 0.6 rad/s, What is the rotational acceleration of the merry-go-round
A radar receiver can be tuned to detect signals in the range of [1750 µm to 2750 µm]. What is the frequency difference between the minimum and maximum wavelength
A whale swims due east for a distance of 1.5 km, turns around and goes due west for 5.7 km, and finally turns around again and heads 4.5 km due east. What is the total distance traveled by the whale
When a 2.20-kg object is hungvertically on a certain light spring described by Hooke's law, the spring stretches 3.11 cm. What is the force constant of the spring?
A block is given an initial velocity of 5 m/s up a frictionless 20 ° incline. How far up the incline does the block slide before coming (momentarily) to rest.
A compound microscope has a barrel whose length is 18.3 cm and an eyepiece whose focal length is 1.2 cm. What focal length must the objective have so the angular magnification of the microscope is -270
consider two spheres sphere 1 having a charge of -q and sphere 2 having a charge of q which are both insulating and
You have fabricated a one-dimensional well of width 12nm, and measurements show that the energy difference between the ground state and the first excited state is 0.16eV. What is the effective mass of the electrons
Water at ground level is moving at a speed of 1.20 m/sec in a pipe at a pressure of 850 kPa. What is the pressure of the water on the fourth floor
an electron and a proton are initially very far apart effectively an infinite distance apart. they are then brought
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