Which best describes when a sonic boom occurs? a. when an object travels below the speed of sound b. when an object travels at or above the speed of sound c. when an object travels at the speed of sound d. when an object travels above the speed of sound

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Listen base your answer to the question on the information below.propane is a fuel that is sold in rigid, pressurized cylinders. most of the propane in a cylinder is liquid, with gas in the space above the liquid level. when propane is released from the cylinder, the propane leaves the cylinder as a gas. propane gas is used as a fuel by mixing it with oxygen in the air and igniting the mixture, as represented by the balanced equation below.c3h8(g) + 5o2(g) → 3co2(g) + 4h2o() + 2219.2 kja small amount of methanethiol, which has a distinct odor, is added to the propane to consumers detect a propane leak. in methanethiol, the odor is caused by the thiol functional group (–sh). methanethiol, ch3sh, has a structure that is very similar to the structure of methanol.what is the correct structural formula for a molecule of methanethiol