Physics, 21.11.2019 22:31 mecennabosaaen
Avery thin plastic ring (radius r) has a constant linear charge density, and total charge q. the ring spins at angular velocity ω about its center (which is the origin). what is the current i, in terms of given quantities? what is the volume current density j in cylindrical coordinates? (this may be a little tricky, since the ring is "very thin", there will be some δ functions. i suggest writing down a formula for rho(r,φ,z) first. and, remember that j should be a vector! ) now let’s take some currents and find the corresponding b field.
b) compute the magnetic field b(0,0,z) along the z-axis for a current loop (current i, radius r, sitting in x-y plane, centered around the z-axis). this is the same situation as part a-ii above, but here just solve in terms of a given current i.
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Determine the maximum r-value of the polar equation r =3+3 cos 0
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Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .
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Physics, 22.06.2019 12:10
Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)
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Physics, 22.06.2019 17:00
(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.
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Avery thin plastic ring (radius r) has a constant linear charge density, and total charge q. the rin...
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