What was the key element that caused Venus and Earth to have different environments? a.) the way carbon is stored

b.) the presence of humans

c.) water and the oceans

d.) how close they are to the sun

An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 v for 0.65 ms. the resistance of the heart muscle between the pacemaker’s electrodes is 550 ω. find (a) the current that flows during a pulse, (b) the energy delivered in one pulse, and (c) the average power supplied by the pacemaker.

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes