Gas cloud 1 is likely to form a star. Gas cloud 2 is not. Based on this information, match the given conditions with each cloud. Its temperature stays well
below 14 million Kelvin.
Its volume shrinks and density
increases due to gravity.
Its temperature surpasses
14 million Kelvin.
It is spread out, with a greater volume and
lesser concentration of elements.
Its hydrogen atoms shed their electrons.
Its hydrogen atoms retain their electrons.

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?

Can you match these to the correct definition

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?