A monochromatic beam of light has a frequency of 6.5 x 10" hertz. What color is the light? O orange
O yellow
O violet
O blue

Why does the input force have to be greater than the force needed to lift the bale?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c