Which of the the input Shelly does on a rake is 80J the output work the rate does on the leaves that 70 J what is the efficiency of the rake is potential energy gravitational energy stored in an object 10 meters above ground the energy of an electron moving through copper wire the energy stored in the bonds of a carbohydrate molecule or the energy stored in the nucleus of uranium Adam

Which one of the following research methods can show cause and effect

Which two particles are found in the center of an atom

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?