How does the length of the vibrating object affect it’s frequency in a guitar

Energy is the ability to do work which measures what

Identify the type of synthetic material used in each object

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .