1. A soccer ball and a bowling ball have a head-on collision at this instant. Rolling friction is negligible.
2. | A weightlifter stands up at constant speed from a squatting position while holding a heavy barbell across his shoulders.
3. | A steel cable with mass is lifting a girder. The girder is speeding up:

If you mix chlorine lithium in nickel together which two elements would be the most reactive

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?