A bobsled is traveling at 18.6 m/sec. The operator uses the brake for 2.60 seconds, slowing the sled to 14.2 m/sec.

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2

Notice how they put future which of the clouds shown would indicate a possible future rain storm? a) b) c) d)

If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.