Physics, 07.03.2020 04:59, karlaperez482
A straight 25.0-g wire that is 1.80 m long carries a current of 6/30 A. This wire is aligned horizontally along the west-east direction with the current going from west to east. You want to support the wire against gravity using the weakest possible uniform external magnetic field. (a) Which way should the magnetic field point?(b) What is the magnitude of the weakest possible magnetic field you could use?
Answers: 3
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Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star
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Acar driving 22.7 m/s on flat ground drives off a 42.3 m high cliff. how much time does it take to reach the ground?
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The voltmeter reads 117 v and ammeter reads 0.13 a .if the resistance of ammeter and voltmeter are 9 kilo ohm and 0.015 ohm respectively ,find the value of r. 3marks
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Physics, 23.06.2019 07:30, DESI111609
One kind of e-book display consists of millions of very small spheres that float in a thin fluid layer between two conducting transparent plates. each sphere is black on one side and white on the other, and possesses an electric dipole moment directed from the white side to the black. when an electric field is applied between the plates, the spheres rotate so that their dipole moment lines up with the field. depending on the fields direction, either the black or the white sides of th espheres can be made visible. the dipole moment of the spheres can be modeled as two opposite charges of magnitude 3.5 x 10^-15 c, separated by a distancce of 100 micrometers (um). what is the maximum possible torque on a sphere if the electric field between the transparent plates is 4.0 x 10^5 n/c
Answers: 2
A straight 25.0-g wire that is 1.80 m long carries a current of 6/30 A. This wire is aligned horizon...
Mathematics, 03.04.2021 21:40