Answer:
PE = mgh
Explanation:
m is mass, g is gravitational constant (9.81) and h is height
Answer:
Radiation , Conduction and Convection
Explanation:
Those are the ways heat is transferred
At the hightest point it would be potential energy, because the energy is stored and then when it is rocking back and forth it has kinetic energy
Solution :
c).
force applied by Abe
force applied by Barry
force applied by Eric
Resultant force
in the vector form can be written as :

in the vector form can be written as :

The resultant,



= 84.853 N
d). As the three forces are in equilibrium, therefore,


e). The direction of the force exerted by Eric is exactly opposite to the direction of the resultant force.
The direction of the resultant force is :


= 45° north east
The direction of the force E is 45° west or 45° south west.