Answer:
Explanation:
In a completely inelastic collision the momentum P is conserved, so can be expressed as:
As P is defined as:
Replacing:
(Eq. 1)
As the problem says that the two cars have the same mass:
And in a completely inelastic collision the velocities after the collision are equal, so:
So replacing in Eq. 1:
Solving for :
And replacing the values for the velocity:
Answer:
Explanation:
Given:
- mass of the oscillator,
- first case of displacement,
- velocity in the first case,
- second case of displacement,
- velocity in the second case,
<u>Now as we know that the total energy in both the cases will remain conserved:</u>
Now the total energy:
When the whole of the spring potential converts into kinetic energy:
Answer:
An electrical cell is a device used to generate electricity, or to make chemical reactions by applying electricity.
Answer:
Earth's tilted axis
Explanation:
Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays.