Answer:
Earth's orbit is elliptical
Explanation:
The earth's orbit is not a straight circle and the sun is not in the very center of it. The orbit is more of a wonky oval with the sun closer to one side of it than the other causing the earth's distance from the sun to vary throughout the year.
Potential energy = mgh
= 53.5 x 9.8 x 4.7
= 2464.21 Joules
CaCl2 is neither an acid nor a base.
<u>Explanation</u>:
- CaCl2 is neutral. It does not ionize to make hydrogen ions, nor dissociate to give ions to hydroxide.
- Calcium chloride, CaCl2is a salt. At room temperature, it is white coloured crystalline solid and is extremely water-soluble. It can be formed by neutralizing the hydrochloric acid with calcium hydroxide.
- These compounds are used essentially to de-icing and monitor dust. It is used as a desiccant since the anhydrous salt is hygroscopic.
Answer:
they repel each other
Explanation:
The same poles repel each other
