A car is driven through streets
treated with salt and then
parked in a warm garage.
a) How will the rate of rusting
compare with a car that
has not been driven in the
streets treated with salt but
left parked outside? Explain
your answer
b) What advice would you give
to the driver of the first car
to slow down rusting?

What happens to isotopes that are unstable?

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?