The rock is tied to a string and swung in a circular path by a boy as shown. The radius of the circular path is 0.6 meters and
the rock makes 100 rounds in 1 minute. The velocity of the rock
is_m/s

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

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

If a balloon is taken outside on a very cold day, what will occur?