If theof a wave increases, its frequency must decrease. a. period
b. energy
c. amplitude
d. velocity

Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?