Aflashlight bulb with potential difference of 4.5 v across it has a resistance of 8.0 . how much current isn’t in the bulb filament a)36 a b)9.4 a c)1.8 a d)0.56 a

Atank holds 1000 gallons of water, which drains from the bottom of the tank in half an hour. the values in the table show the volume v of water remaining in the tank (in gallons) after t minutes.t(min) 5 10 15 20 25 30v(gal) 694 444 250 111 28 0(a) if p is the point (15, 250) on the graph of v, find the slopes of the secant lines pq when q is the point on the graph with t = 5, 10, 20, 25, and 30.(b) estimate the slope of the tangent line at p by averaging the slopes of two secant lines.(c) use a graph of the function to estimate the slope of the tangent line at p. (this slope represents the rate at which the water is flowing from the tank after 15 minutes.)show all steps.

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?