Suppose you heat a liquid and then bubbles are produced. with no other evidence, can you tell whether a physical or chemical is occurring? explain your answer

Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

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?