PLEASE HELP SOMEONE. A duck is in the water and there are two seconds between successive ways. What is the frequency of the waves.
a. 1 Hz
b. 2 Hz
c. 0.5 Hz
d. 1.5 Hz

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.

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

What are the three ways that an object can accelerate