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.

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current

State the below theories and give the name of the writer of the theory 1. wave theory 2. quantum theory 3. corpuscular theory 4. electromagnetic theory