Which one of the following environments will sound not travel through?
a. liquid
b. gas
c. solid
d. vacuum

Carmen is load furniture and boxes onto a moving truck. she picks up boxes of her things, places them on a cart, and pushes the cart to the moving van. which term best describes the type of force carmen uses? a. contact b. friction c. gravity d. noncontact

Asimple electrochemical cell contains two electrodes.

What evidence supported the oscillating big bang?