# Recent content by supratim1

1. ### Effect of pressure at ocean-bottom

yes sir, surely i will. thank you.
2. ### Effect of pressure at ocean-bottom

well thanks. my doubt is cleared now.
3. ### Effect of pressure at ocean-bottom

If we take a steel container, fill it completely with water and seal it back (all this at sea-level), and then take it to bottom of sea, what will happen to the container? Will it be crushed? What equation should we use to relate initial and final volume? Kindly help.
4. ### How refrigerators and air conditioners work

the heat you are talking about is taken from the things (and air) kept in the refrigerator, thus cooling them.
5. ### Polarized Dielectric and Charge Density.

thank you very much.
6. ### Polarized Dielectric and Charge Density.

thank you. but how do i find the divergence of polarization?
7. ### Polarized Dielectric and Charge Density.

Homework Statement A long round dielectric cylinder is polarized so that the vector P = ar, where 'a' is a +ve constant & 'r' is the distance from the axis.find the space density rho` of bound charge as a function of distance r from the axis. Homework Equations Gauss Law. The...
8. ### Mass creation from m=e/c^2. is it even possible?

yes it can. 100% efficiency will be hell for a bomb, and heaven for a power plant.
9. ### Produce Electricity from unused Radio waves?

yes you are right. so the best way forward is to increase the efficiency of our PV cells.
10. ### Gravitation and magnetic field?

its because of the centrifugal force.
11. ### Produce Electricity from unused Radio waves?

and what about using the cosmic background radiation and also the earth's magnetic field fluctuations due to constantly fluctuating magnetosphere?
12. ### Mass creation from m=e/c^2. is it even possible?

so it means that 100% is not utilised, only a small fraction is converted to energy.
13. ### Gravitation and magnetic field?

you can however change or control directions of moving charged particles using magnetic fields.
14. ### Mass creation from m=e/c^2. is it even possible?

It would require 1kg Uranium only if ALL the atoms of uranium are converted to energy. Usually its is around 2-3%, not 100%.
15. ### Produce Electricity from unused Radio waves?

yes, i agree with Mr. Palladin. i was thinking the same thing.