When the period of an electromagnetic wave becomes greater, its frequency

a. increases.

b. decreases.

c. stays the same.

d. it depends on the type of electromagnetic wav

Select the choice that accurately describes the modality of the following statement: The area of a square is equal to the sum of the area of two triangles. a. Metaphysically necessary b. Metaphysically contingent c. Metaphysically impossible d.

How long ago did the Big Bang happen?

The light of that star actually gives off

In what sense does the moon fall

What is the speed of sound at the atmospheric temperature of 30°C?

What is acceleration? a. change in velocity/change in time b. change in distance/change in time c. change in mass/change in volume d. change in pressure/change in time

Brittany stands at rest on a skateboard. the combined mass of brittany and the skateboard is 62 kg. dave tosses a 3.7-kg pumpkin to brittany, and when she catches it, she and the skateboard begin to roll backward with a speed of 0.16 m/s.

The maximum restoring force that can be applied to the disk without breaking it is 40000 n. what is the maximum oscillation amplitude that won't rupture the disk

Which is a vector quantity speed or velocity

With a naked eye your are unlikely to see a "blank" in your lifetime. A - Comet. B - Shooting Star. C - Meteor. D - Planet.