Photons are particles of electromagnetic radiation.
Answer:
Explanation:
- We have to make a hollow sphere of inner radius and outer radius .
Then the mass of the material required to make such a sphere would be calculated as:
Total volume of the spherical shell:
And the volume of the hollow space in the sphere:
Therefore the net volume of material required to make the sphere:
- Now let the density of the of the material be .
<u>Then the mass of the material used is:</u>
Answer
m/s rate of change of dispalcement per sec. ie velocity
m/s^2 is (m/s)/s ie rate of change of velocity per sec. ie accelerationplanation: