How much time does it take for cheetah to accelerate at 20m/s from rest to a speed of 40m/s? =2sec

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 the perspective of an employee that effective channeling of work related information and concerns

An impulse is the product of the on an object and time during which it is applied