The answers are:
Reflecting telescopes are less expensive, the materials are not costly.
Reflecting telescopes can gather light from objects. This becomes basis the system to see Celestial objects.
Reflecting telescopes uses mirrors and Refracting telescopes use lenses. It is also much bigger in size because of the mirrors placed inside.
More particles collide in the correct orientation
Answer:
The car is carrying a volume of air that is moving at 80 mph relative to the ground. But inside the car itself, the air not moving very much. If you take the windshield out and drive a 80 mph you will smash the fly onto the back window.
Explanation:
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If a wave was traveling at 15.0 m/s it would take 80 minutes
