A screwdriver is being used to pry the lid off a can of paint, in the orientation shown in the above diagram. A vertical force is exerted at the very end of the screwdriver, as shown.
This force causes a 200 Nm torque about an axis through the screwdriver's other end.
What is the length of the screwdriver?

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

Which of the following elements is in the same period as phosphorus? a. carbon c. nitrogen b. magnesium d. oxygen select the best answer from the choices provided a b c d

Hi , i am new here can anyone me out with this question why is space black after having so many shining objects like sun , moon , stars