Answer: h=0.6 lbs
Let the whole body weight of a mammal be w
Let the weight of the heart be h It is given that the weight of the heart is 0.5% weight of the whole body weight.

It is given that the weight of the human, w=120 lbs
Hence, weight of the heart, 
Do the same thing you were doing
Answer:
Explanation:Explanation: Newton's 2nd law states acceleration is proportional to the net force acting on an object. ... This means if friction is present, it counteracts and cancels some of the force causing the motion (if the object is being accelerated). That means a reduced net force and a smaller acceleration
Several kinds of energy do:
-- More mass at the same height has more potential energy.
-- More mass at the same speed has more kinetic energy.
-- More mass of cooked spinach has more food energy.
-- More mass of the same substance at the same temperature
has more heat energy.