Physics, 20.08.2019 20:10 Hrjohnson2004
Au-shaped electromagnet of length l, a pole separation d, and permeability m has a square cross section of area a. it is wound with n turns of wire carrying a current i. calculate the force with which the magnet holds a bar of the same material, of same cross section, against its poles.
Answers: 1
Physics, 22.06.2019 11:30
Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 ยตc of charge distributed uniformly along its length, and the other carries - 2.50 ยตc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?
Answers: 3
Physics, 22.06.2019 12:00
The sunโs mass is 2.0ร10^ 30 kg, its radius is 7.0ร10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5ร10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
Answers: 3
Physics, 22.06.2019 18:10
Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70ยฐc. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)
Answers: 1
Au-shaped electromagnet of length l, a pole separation d, and permeability m has a square cross sect...
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