Two liquids are taken in two beakers named A and B. When a wooden block of mass 20 N is placed in beaker A, it floats. When the wooden block is placed in B, it sinks. Then,
a) Which beaker displaces more liquid?
b) Why the wooden block sinks in beaker B?
c) If these two liquids taken in one beaker, which liquid will be on the top? Why?

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.