Select all that apply. which of the following corresponds to absolute zero? 0°c -273°c 0 k -273 k

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

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

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)