Answer:
Neutrons are sub-atomic particles located in the nucleus of an atom. They have an atomic mass of one unit and have no charge.
Explanation:
Answer:
After 29.5 days
Explanation:
Complete question
If the moon started its orbit from a spot exactly between Earth and the sun, then after how much time it would return to almost the same spot ?
Solution
New moon occurs once in 30 days. Hence there is a gap of 30 days between two new moons. To be specific moon phases repeat after every 29.5 days. However, as per the Gregorian calendar there can be two new moon in one month with a gap of 15 days only between two new moons.
<u>ANSWER:</u>
Cosmic background radiation is leftover thermal energy from the Big Bang best describes the origin and expansion of the universe.
<u>EXPLANATION:</u>
- The "Big Bang Theory" is used to describe how the universe has begun.
- The theory basically states that the "universe" began as a "single point" and then "expanded and stretched" and is expanding even today.
- When the universe began, it was "hot tiny particles" mixed with heat and light and as it "expanded" and took up "more space", it cooled down and formed atoms.
- The "best evidence of the big bang" is the radiation of cosmic background that was leftover when the first big bang explosion took place and began the universe.
The answer is that both devices are a type of simple machine called a wedge. A wedge is just one of six types of simple machines. The others are the inclined plane, screw, lever, wheel and axle, and pulley
