Kate threw a tennis ball with 20N of force, which caused it to accelerate at a rate of 12m/s2. What is the mass of the tennis ball? Round to the nearest hundredth.

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

Which transition by an electron will release the greatest amount of energy? oa ob oc od

For which pair of objects would adding the same a