The current in a wire varies with time according to the equation I(t)= (3.00 A/s2)t2-(2.00 A/s)t-1.00 A, where t is in seconds (current is in Ampere). How many coulombs of charge pass a cross section of the wire in the time period between t=0.00 s and t=3.00 s?

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

Avoltaic cell converts chemical energy to