Suppose a person built a sandcastle of moon sand on the moon. What would that person find there a month later? The sandcastle would have grown larger because moon sand particles attract other moon sand particles.
The sandcastle would be much smaller because changing winds would have eroded much of the sand away.
The sandcastle would have grown larger by collecting more sand particles because moon sand is blown by wind.
The sandcastle would remain in place the same size that it was because the moon has no wind.

Suppose a person built a sandcastle of moon sand on the moon. What would that person find there a month later?

The sandcastle would have grown larger because moon sand particles attract other moon sand particles.

The sandcastle would be much smaller because changing winds would have eroded much of the sand away.

The sandcastle would have grown larger by collecting more sand particles because moon sand is blown by wind.

The sandcastle would remain in place the same size that it was because the moon has no wind.

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)