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

Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.