How does convection cause tectonic plates to move? A
Convection keeps the plates thin enough to move.

B
Convection makes the plates solid enough to move.

C
The rising heat of convection currents moves the almost-liquid rocks.

D
The pressure of convection bends rocks until they break completely.

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2