C. It will move along the normal. D. It will move perpendicular to the normal.
E. It stops traveling.
Answer:
Explanation:
B. Water molecules move from their fixed position.
C. Water molecules lose energy.
D. The temperature of the ice increases as it melts.
The answer for this question is part B that is Water molecules move from their fixed position.
This is because when water is freeze it is in a solid condition that means the molecules are held together tightly and are are vibrating in their fixed positions.
As soon as the molecules gain energy they start to move around from their fixed positions and turn into a liquid.
In the process of doing so ice melts and becomes water.
Answer:
Rate of change of length as a function of time is given by
Explanation:
The length as function of time is given by
Differentiating with respect to time we get
The correct answer to the question is : Mechanical energy.
EXPLANATION:
Let us consider a pendulum which is raised to certain height. The energy possessed by the pendulum at this height is gravitational potential energy.
Let the pendulum is released. Now the potential energy of the pendulum is converted into kinetic energy. At the mean point, whole of its potential energy is converted into kinetic energy.
Due to inertia, the pendulum will overshoot its mean position and will move towards its extreme position. During its movement from mean point to extreme point, the kinetic energy is converted into potential energy. At extreme point, whole of its kinetic energy is converted into potential energy.
Hence, there is only energy conversion between kinetic energy and potential.
We know that sum total of kinetic energy and potential energy is called mechanical energy.
Hence, the correct answer is mechanical energy.