Answer:
I believe it is C
Explanation:
When the water freezes the kinetic energy decreases because it is staying in place instead of moving around, which also causes thermal energy to decrease.
Answer:
Explanation:
Retrograde motion in astronomy is, in general, orbital or rotational motion of an object in the direction opposite the rotation of its primary, that is, the central object (right figure). It may also describe other motions such as precession or nutation of an object's rotational axis. Prograde or direct motion is more normal motion in the same direction as the primary rotates. However, "retrograde" and "prograde" can also refer to an object other than the primary if so described. The direction of rotation is determined by an inertial frame of reference, such as distant fixed stars.
Answer:
Kr = 0.7618K
Explanation:
Suppose that the object's velocity is V, then his kinetic energy is:
K = 
K = 
K = 8
The rotational kinetic energy is
Kr = 
where I: The moment of inertia
ω: angular velocity
Kr =
Kr = 0.295
How the movement is without slipping, then
ω = 
ω = 
Thus
Kr = 
Kr = 6.095
8 ----> 1
6.095----->?
Kr = 0.7618K
You are correct, the answer is C.
Good insulators are materials that do not allow heat, electricity, light or sound pass through easily. Materials like steel and silver (which are metals) are not good insulators because they make good conductors. They easily allow heat, electricity and the like pass through them.
Thus, the answer is letter C. Rubber.
