Roughly how long does it take for the sun's light to reach Earth - 8 minutes, 8 hours or 8 days?

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

Frequency of electromagnetic waves that a radio station is assigned is called