Answer:
D. The oxygen side is partially negative because electrons are pulled toward the oxygen side.
Explanation:
The water molecule is polar by the virtue of covalent bonds and the hydrogen bonds within and between its molecule.
The oxygen side is partially negative because the electrons are pulled toward the oxygen side.
Between oxygen and hydrogen that makes up the water molecule, oxygen is more electronegative.
An electronegative atom has more affinity for electrons. Since the electrons in the molecule of water is shared between hydrogen and oxygen, the more electronegative specie which is water draws the electron more to itself.
This leaves a net negative charge on the oxygen atom.
You must find the component of the force before calculating
So we want to know what is the magnitude of the horizontal component of acceleration ah if we know that the overall acceleration a=12 m/s^2 and the angle of overall acceleration and the horizontal acceleration is α=50°. We know that ah=a*cosα. So now it isn't hard to get the horizontal component: ah=12*cos50=12*0.64=7.71 m/s^2. So the correct answer is ah=7.71 m/s^2.
Answer:
<h2>
</h2>
Explanation:
<u>Rule</u><u>:</u>
<h3>
Speed= Distance/ Time</h3>
<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>!</em><em> </em>
Q = m * c * ΔΤ
ΔΤ = 40-20 = 20
Q = 1.5kg * 0.9 * 20
Q = 27J
