1. A wrench is being used at an angle 20° from the perpendicular. Explain why the angle 70° is used in the equation when calculating torque.

This is what i found on google “lithium and sulfide can react together to form litium sulfide(li2s). when lithium sulfide hydrolyses(breaks down) in air, it releases hydrogen sulfide which is characteristized by a rotten egg odor.” i hope this you for what your looking for

Because the sun is the biggest and if the sun orbits the earth we will be dead probably

Answer sample (c); // would be best because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest;