Why is the big bang called a theory? a) all of these are correct
b) because all people on earth believe in it
c) because we have evidence of it but can't prove it
d) because it is true​

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

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?

What is the final velocity of the initial velocity of 25 and -50?