The fluid that is being passed through the syringe and needle is incompressible, which means that it will transmit pressure equally. Therefore, the pressure on the plunger will be equivalent to the pressure on the needle. We also know that:
Pressure = Force / Area
Pressure on plunger = 4 / (π*(0.012/2)²)
Pressure on plunger = 35.4 kPa
Pressure on needle = 35.4 kPa
35.4 kPa = F / (4 / (π*(0.0025/2)²)
F = 0.17 N
The force on the needle is 0.17 N
It would be a <span>electromagnetic wave
Hope that this would help you! =)</span>
As we know by Gauss's law that
so for line charge the gaussian surface is cylindrical in shape
so we will have
now by rearranging the terms
so here we will have to find the x component of electric field so it is given by above equation
here x = distance from the wire where we need to find electric field
Cr(chromium) is number 24, meaning that it has 24 protons, and 24 electrons. You subtract the atomic number from the atomic mass to get the number of neutrons. 50-24=26 neutrons. There are other isotopes that have more neutrons, as the mass on the periodic table is 52.