Answer:
Explanation:
Given data:
weigh (head+arms + head) w_1 = 438 N
centre of gravity y_1= 1.28 m
weigh (upper leg) w_2 = 144 N
Center of gravity y_2 = 0.760 m
weigh ( lower leg + feet) = 87 N
centre of gravity = y_3 = 0.250 m
location of center of gravity 
True you cant research something without having a hypothesis of what you think would happen
Thermal equilibrium is achieved when two objects or systems reach the same temperature and cease to exchange energy through heat. When two objects are placed together, the object with more heat energy will lose that energy to the object with less heat energy.
Alpha decay is your answer. This picture should explain it to some degree.
The coefficient of linear expansion is
<em>(change of length, feet) / (original length, feet)</em> per °F.
Since the numerator and denominator of the fraction have the same
unit, the coefficient turns out to be just a number, with no unit.
