I THINK 5 is A and 6 is C
Sadly, I can't remember the name of who's 'Law' this is
in Electricity and Magnetism, but it says that the net
flux passing through a closed surface is equal to the
net charge inside.
In the picture, the net charge inside the surface is ( + q - q ) = Zero.
So it must follow, as the night follows the day, the net flux
through the surface is Zero. (D)
Answer:
When the piston is pulled up, air gets sucked into the pump through the inlet. The pump chamber depressurizes as it fills with air. When the piston is forced down, the air becomes compressed and closes the inlet. Then the air flows out from the outlet
The answer for this question would be choice "<span>B. The average annual dose of background radiation is 250 times smaller than the dose linked to increased cancer risk."
You only have to compare 4.0 x 10^-4 and 1.0 x 10^-1. And if you can observe carefully, when you try to multiply the average annual dose of background radiation by 250, you would get 0.1 which is equivalent to the amount of annual dose linked to increased cancer risk. Therefore, the answer is B.</span>