A flowerpot of mass 42N is hung above a window by three ropes, each making an angle of 20° with the vertical. What is the tension in each rope supporting the flowerpot?

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

What properties of a moving object are used in determining the object's energy of motion

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine