Answer:
Calcium sulphide
Explanation:
If we look at the compound, we will discover that it is an ionic compound. The compound is comprised of Ca^2+ and S^2-.
The cation Ca^2+ is the calcium ion while the anion S^2- is the sulphide ion hence the compound is rightly named calcium sulphide.
Answer:
= 2 beats per seconds
Explanation:
- From |f -f'| = modulus of the difference between the frequency given.
- Difference between the frequency will give us the number of beat per seconds.
These also shows how to get the period of the tuning forks.
Answer:
<h2>
<u>3. The Sputnik orbitted at approximately 577.1 km above the surface of the Earth. </u></h2><h2>
<u>4.First Successful U.S. Rocket Launch into Space was The Jupiter C</u></h2>
Explanation:
The first two are already answered 5-9 I cannot answer because I have not watched "October sky video" and I don't know who homer and the boys are<em>.</em>
I Hope This helps
<span>speed = wavelength x frequency
speed = 0.4m X 10 Hz
speed = 4 m/s</span>
Answer:
telescope
Explanation:
| AMNH. Before telescopes were invented, people gazed at the night sky with amazement and dreamed of a closer look. The invention of the telescope in 1608 gave humans their chance to explore the vastness of the Universe.
