Fine by drawing and by calculation the inclined of two vectors 3 units and 4 units inclined to each other

Awalk up the phase change graph worksheet

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

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 .