A situation where friction would be desirable is rubbing your hands together to make them warm in the winter time.
Answer: Electromagnetic waves
Explanation: The main property of the waves is the way how they propagate or travel in medium The waves which can travel without a medium is said to travel in vacuum or air.
<h3>Answer:</h3>
B] Meters per second
<h3>Explanation:</h3>
- We know that speed = distance ÷ time. So hour per km and second per Mile cannot be the unit of average speed.
- Now the remaining options are <u>miles per hour</u> and <u>Meter per second.</u>
- In comparison with both of these;
we know that metre per second is the SI unit of average speed and hence the answer is <u>meters</u><u> per </u><u>second</u>.
Answer:
<em>Jansky Very Large Array </em>
Explanation:
It Is most powerful telescope on Earth and is located on the plains of San Agustin near Socorro, New Mexico, US. This telescope consist of 25 antennas whose collective ares is equal to a single 430 foot antenna. The angular resolution is equal to an antenna of 22 miles in diameter. It is also possible to adjust its arms to change its resolutions. There is receiver in each antenna that can operate from wavelength range of 4 mm to 7 metres. National Radio Astronomy Observatory is in charge of this telescope.
The best answer is c) trust me
