A hockey puck slides 26 meters in 8 seconds how far did it travel

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

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Aplane's average speed between two cities is 600 km/h. if the trip takes 2.5 hours, how far does the plane fly?