Answer: Potential energy to kinetic energy
Explanation:
Potential energy is the energy by virtue of its position
P.E = mgh
While
Kinetic energy is the energy by virtue of motion.
K.E = 0.5mv^2
At the top of the hill the boulder has maximum height and thereby possess maximum P.E, as it rolls down the hill the height reduces and velocity increases, so the P.E reduces and K.E increases(P.E is directly proportional to height while K.E is directly proportional to velocity). So as the boulder rolls down the hill its potential energy is converted to kinetic energy (according to the rule of conservation of energy).
Answer:
Compression and Rarefaction
Explanation:
Sound is a wave that propagates through a medium which is actually a vibration. Sound generally travels through a medium in the form of longitudinal waves. These waves cause changes in pressure of the medium causing local compression and rarefaction regions of air. Compression occurs when the sound waves passing through the medium increases the pressure and rarefaction when the pressure decreases.
Hello
The kinetic energy K of a moving object is:
where m is the mass and v the velocity of the object.
Using this formula, we can calculate v for this problem:
Answer:
I believe D
Explanation:
I'm not for sure but I think it is D
The layer would be the CONVECTIVE ZONE. The convective zone is named as such because of that is the layer where convection occurs. Convection is the type of heat transfer where heat goes up and circles back down to be heated as seen with a pot of boiling water with rice.
The rice heats up, along with the water and it goes up. When it touches the cold air, it cools down and travels back down, which will be heated again.