Amass m = 0.7 kg is released from rest at the origin 0. the mass falls under the influence of gravity. when the mass reaches point a, it is a distance x below the origin 0; when the mass reaches point b it is a distance of 6 x below the origin 0. what is vb/va?

Under normal temperature and pressure conditions, what type of rock could be formed from weathering in erosion of metamorphic rock

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

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic