Answer:
Explanation:
A solid is Sphere is somehow place inside a solid cube and the system is heated .
Material of cube and Sphere is same therefore coefficient of volume expansion is same for both shapes.
change in volume is given by
where
As initial volume of Cube is more than the sphere therefore Cube will expand more keeping other two factors same.
A graduated cylinder should be the best if using ml
Answer:
its center of gravity lies over its base of support.
Explanation:
An object will be stable if its center of gravity lies over its base of support.
When an object is balanced so that a displacement lowers its center of gravity, the object is said to be in stable equilibrium.
Total Mechanical Energy = KE + PE
KE = (1/2)mv²
= (1/2)*8*20² = 1600 J
PE = mgh g ≈ 10 m/s²
= 8 * 10 * 85 = 6800J
Total Mechanical = 1600 + 6800 = 8400 J.