Aperson is jumping off a bridge onto the top of a car that is passing underneath. suppose that the top of the bridge is h=10 meters above the car and the car is moving at a constant speed of v=30 mi/h the person wants to land in the middle of the car. how far from the bridge should the car be when the person jumps. express the equation in variables then numerically

Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass

From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.

What are the north and south poles of a solenoid change with?