Niel depicted that the atom was a small, positively-charged nucleus surrounded by negatively-charged electrons that travel in circular orbits around the nucleus
Answer:
<h3>Ion beams and Electrochemical are two examples of direct current electricity.</h3>
Answer: e. P/2
Explanation:
For ideal gases, we have the relation:
P*V = n*R*T
where:
n = number of mols
R = Gas constant
T = temperature
V = volume
P = pressure.
We know that for sample A, we have n moles, a temperature T and a volume V, then the pressure of this sample will be:
Pa = (n*R*T)/V.
For sample B, we have:
n/2 moles, temperature T/2 and a volume V/2, then the pressure will be:
Pb = (n/2)*R*(T/2)*(2/V) = (n*R*T/V)*(2/4)
and:
(n*R*T/V) = Pa
Then we can replace it and we get:
Pb = (n*R*T/V)*(2/4) = Pa*(2/4) = Pa*(1/2) = Pa/2.
Then the correct option is e.
Answer: 
Explanation:
Given
Water column height 
After oil is poured, the total height becomes 
Pressure at the bottom will be the sum due to the water and oil column
Suppose the density of the oil is 
Pressure at the bottom
![\Rightarrow P=10^3\times g\times 25+900\times g\times 15\\\Rightarrow P=100g[250+135]\\\Rightarrow P=3773\times 100\ Pa\\\Rightarrow P=377.3\ kPa](https://tex.z-dn.net/?f=%5CRightarrow%20P%3D10%5E3%5Ctimes%20g%5Ctimes%2025%2B900%5Ctimes%20g%5Ctimes%2015%5C%5C%5CRightarrow%20P%3D100g%5B250%2B135%5D%5C%5C%5CRightarrow%20P%3D3773%5Ctimes%20100%5C%20Pa%5C%5C%5CRightarrow%20P%3D377.3%5C%20kPa)
