Answer:
A) radio waves
Explanation:
A police officer using radar for speed control is using radio waves.
Radio waves is one of the forms of electromagnetic radiations that are known.
- Radar is a detection system for spotting objects within its coverage.
- It is a non-ionizing radiation and safe radiation source.
- Radar generally belongs to the low energy part of the electromagnetic spectrum.
- They have large wavelength with very low frequency.
Answer:
Exactly 4 people can go.
Explanation:
First, you subtract $169.50 from 14.50, which is $155
Then, you do 38.75 x 4, to find out how much money it would cost for the tickets.
Since 38.75 x 4 = $155, exactly 4 people can go to the amusement park.
Answer:
Ribosomes
Explanation:
hope that helps and sorry if it's wrong