Part1) which of the following wires would have the least resistance? (*=degree) a-an aluminum wire 20cm in diameter at 40* c b-an aluminum wire 20cm in diameter at 60* c c-an aluminum wire 40cm in diameter at 40*c d-an aluminum wire 40cm in diameter at 60*c 2)a flashlight bulb with a potential difference of 4.5 v across it has a resistance of 8.0 ohms. how much current is in the bulb filament? a-36 a b-9.4 a c-1.8 a d-0.56 a

What is a carrier wave and how does it affect what you hear on the radio

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)

To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.