Explain what is required for destructive interference in an air wedge.

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these