Analysis
1. determine the water displaced
by the pencil by subtracting the
initial volume from the final
volume.
2. calculate the pencil's density by
dividing its mass by the volume of
water displaced.
3. compare the density of the pencil
to the density of water.

i'm pretty sure its b i might be wrong though!

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)