What is the momentum of a 2 kg object moving at 15 meters per second

Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?

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

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?