If you blew on balloons and they move, is that a contact or non-contact force? Explain your answer.

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

2. -/1 pointsserpse10 2.7.p.017.mi. an object moving with uniform acceleration has a velocity of 14.0 cm/s in the positive x direction when its x coordinate is 2.97 cm. if its x coordinate 2.85 s later is -5.00 cm, what is its acceleration? cm/s2 need ? read it master it

The necleus of an atom is made up of what subatomic particles?