Answer:
The change in frequency hearded by an observer in the truck is f'= 636.36 Hz.
Explanation:
Vo= 36 m/s
Vf= 45 m/s
V= 342 m/s
f= 500 Hz
f'= f * ((V- (-Vo)) / (V - Vf)
f'= 636.36 Hz
Explanation:
The given data is as follows.
Electric potential energy () = ?
Formula to calculate electric potential energy is as follows.
=
=
Thus, we can conclude that the electric potential energy of the pair of charges when the second charge is at point b is .
Then the coin will float on the surface of the liquid in the eishimg well.
Answer:
1. The change from a liquid state to a gaseous state: boiling (evaporation)
2. The change from a gaseous state to a liquid state: condensation
3. The change from a solid state to a liquid state: melting
4. The change from a liquid state to a solid: freezing
5. The change from a solid state to a gaseous state: sublimation
6. The change from a gaseous state to so solid: deposition
7. A change of state: phase change
Explanation:
<em>A change of state is a physical change a substance suffers, it changes it physically but not chemically. In the image I added you can observe how these changes occur between the solid, liquid and gaseous states.</em>
I hope you find this information useful and interesting! Good luck!
I think it is b because atoms make up molecules...
hope it helps:)