Explanation:
neutron stars have diameters of about 20km and they are denser than the earth. A rotating neutron star pulsating electromagnetic beam is a named a pulsars but not all neutron stars are pulsars.
Only three of hundreds of known pulsar are found in supernova remnants because as neutron stars gets older, they lose energy and starts to decrease their rotational speeds and the neutron star could not radiate particles and energy for long as a pulsar does. there are less existing pulsars compared to supernova explosion rate because the life time of pulsars is obout 10×10^6 years after the neutron can no longer spin at high speeds to produce beams of particles and energy, almost all the pulsars are older and spin slow to produce light of visible wavelength or X-ray wavelengths and we only get a pulse of radiation from a neutron star as a pulsar as the beam sweeps over earth.
False.
Force is found by multiplying mass of an object by its acceleration.
F = mass * acceleration
Longer the air column is the more harmonics are created. due to the longer column the waves have more space to bounce off of the sides of the column to create more harmonics.
Answer:
An electrical field duh
Explanation:
None needed self explanitory
Opposition for the current flow
Explanation:
- Resistance is defined as the ability pf the conductor to oppose the flow of electrons through it. It is usually represented in Ohm.
- Resistance is an important parameter in a circuit design and it should be properly designed.
- Resistance of a conductor depends upon the material nature, length of the conductor and area of cross section.
- In conductor, Resistance is low. It is due to that charges flow through the conductor freely.
