The trachea is a tube that carries air inside the lungs.
At STP, 1 mole of an ideal gas occupies a volume of about 22.4 L. So if <em>n</em> is the number of moles of this gas, then
<em>n</em> / (19.2 L) = (1 mole) / (22.4 L) ==> <em>n</em> = (19.2 L•mole) / (22.4 L) ≈ 0.857 mol
If the sample has a mass of 12.0 g, then its molecular weight is
(12.0 g) / <em>n</em> ≈ 14.0 g/mol
Risks are only in a persons
Answer:
Explanation:
F = G*m1 * m2 / r^2
G = 6.67408 × 10-11 m3 kg-1 s-2
r = 15 m
F = 4.60 * 10^-6 N
m1 = m2 = m
F = 6.67 * 10^-11 * m^2 / 15^2
4.60 * 10^-6 = 6.67 * 10^-11 * m^2 / 225 Multiply both sides by 225
4.60*10^-6 * 225 = 6.67*10^-11 * m^2
.001035 = 6.67408 × 10-11 * m^2 Divide by 6.67408 × 10-11
0.001035/ 6.67408 × 10-11 = m^2
m^2 = 15507755 Take the square root of both sides
m = sqrt(15507755 )
m = 3938 kg
In the process of finding an image with a lens, three basic lines are usually drawn, the lines are as follows:
LINE ONE: This line represents the ray that leaves the object and travels towards the center of the lens. This line is usually undeflected and it travels through a straight line.
LINE TWO: This line represents the ray which travels from the object parallel to the axis of the lens. The line is deflected in such a way that it passes through the focal point of the lens.
LINE THREE: This line represents the ray that travels from the object and which passes through the focal point on the near side prior to getting to the lens. This line is deflected in such a way that it travels parallel to the axis. <span />
