The decrease in gravitational potential energy of the system is given by
where
m is the mass, g is the gravitational acceleration, and 
is the variation of height of the system.
also corresponds to the weight of the diver, therefore if we rearrange the equation and we use 
and 
, we can find her weight:
D. Circulatory
The digestive system works very closely with the circulatory system to get the absorbed nutrients distributed through your body. The circulatory system also carries chemical signals from your endocrine system that control the speed of digestion.
A compound Machine is 2 machines that work together in order to make a task easier.
Answer:h=19.4 m
Explanation:
Given
mass of automobile 
Initial height of automobile 
Velocity at this instant 
If the car stops somewhere at a height 
Thus conserving total energy we get
For this, you need the v-squared equation, which is v(final)² = v(initial)² + 2aΔx
The averate acceleration is thus a = (v(final)² - v(initial)²) / 2Δx = (20² - 15²) / 2(50) = 175 / 100 = 1.75 m/s²
So the average acceleration is 1.75 m/s²
