There are many other renewable sources to use such as hydro power, and wind power. All of these are renewable and safe to the environment. One reason solar power may not be used is because of it's cost.
Slope formula : y2 - y1 / x2 - x1
The coordinates are ( 66 , 39) and ( 12 , 83)
83 - 39 / 12 - 66
44 / - 54
slope = - 0 . 81 or - 22/27
The best tool to add waves to straight hair is a curling iron or curling wand. You have total control over the size and positioning thanks to them.
<h3>How harmful is hair curling?</h3>
These instruments can assist you in achieving your ideal appearance, but they can also cause heat damage to your hair. According to Phys.org, studies have shown that flat irons and curling irons can char 85% of the keratin proteins in your hair, making it dry and brittle.
<h3>What results with daily curling?</h3>
Daily bicep curling will enhance exposure to factors that encourage muscle growth. Because the biceps are a smaller muscular group, they recover more quickly between sessions, allowing for a higher overall volume over the course of a given week.
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Answer:
a) -54.42 eV
b) C VI (C +++++)
Explanation:
Hi!
I imagine that the formula given in class is the energy of the hydorgen like atoms, which is:
Where all are physical constants, such as vacuum permitivity ε0, planck's constant (reduced) h bar, electron's charge e, the atomic number Z, and the reduced mass μ.
The reduced mass is given by the formula:
In general the electron's mass is much smaller than the nucleous mass therefore the reduced mass is almost equal to the electron's mass.
If we replace all these constants the energy will become:
For He --> Z = 2, therefore:
And the ground state is given when n=1
a)
E = -54.42 eV
b)
This formula applies only to hydorgen like atoms, that is whit only one electron, therefore if an element were to have Z electrons, the formula will only apply to that element ionized Z-1 times.
For C Z=6
We could only calculate the quantum energy levels with the given formula for C VI (C +++++)
<span>So we want to know how did the planets form in the Solar system. So the current most accepted explanation is accretion. First the Sun formed, and what has left was a disk made out of gas and dust which later formed the planets trough attractive gravitational force.</span>
