1.Which of the following is the best example of motion?A. Waving your armsB. Tossing and turning in your bedC. Walking from home to schoolD. Your dog wagging his tail

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?

Work = force × a. work b. energy c. distance d. momentum

Explain why electric current cannot exist if a current doesn't have a voltage source.