Friction pushes her hands!!
Evaporated water changes form into gas
Explanation:
Human body, the physical substance of the human organism, composed of living cells and extracellular materials and organized into tissues, organs, and systems.
https://www.britannica.com › science
human body | Organs, Systems, Structure, Diagram, & Facts |
I think so it ans wold be d.because if the source approaches the observer more and more wavefront will pass and it get squeezed.so wavelength decreases and frequency increases.
Given :
Reem took a wire of length 10 cm. Her friend Nain took a wire of 5 cm of the same material and thickness both of them connected with wires as shown in the circuit given in figure. The current flowing in both the circuits is the same.
To Find :
Will the heat produced in both the cases be equal.
Solution :
Heat released is given by :
H = i²Rt
Here, R is resistance and is given by :
![R = \dfrac{\rho L}{A}](https://tex.z-dn.net/?f=R%20%3D%20%5Cdfrac%7B%5Crho%20L%7D%7BA%7D)
So,
Now, in the question every thing is constant except for the length of the wire and from above equation heat is directly proportional to the length of the wire.
So, heat produced by Reem's wire is more than Nain one.
Hence, this is the required solution.