Cosmic Microwave Background radiation is one piece of supporting evidence for the Big Band Theory. Are these microwaves at the longer or shorter end of the spectrum? are they long or short?

Which of the following is an example of units for speed

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?