It is called the reaction force of a bird flying.
He has 1 1/30 gallons, or 31/30 gallons, you can find this by setting all the fractions to a common denominator and adding them
Answer:
1.10m/s
2.0.1m
3.5Hz
Explanation:
v=velocity, f=frequency and T=wavelength
1.v=ft
v=2x5
=10m
2.v=ft
100=1000T
divide both sides by 1000
T=0.1m
3.v=fT
25=5f
divide both sides by 5
f=5Hz
Answer: The correct answer is B. "the electromagnetic waves appear more red in color".
Explanation:
Scientists use the Doppler effect to understand the universe by determining the motion of the object.
Red shift: The apparent frequency of light decreases as the source object in space moves away from us. The light is shifted to red end. The apparent frequency decreases and there is increase in the wavelength of the light.
Blue shift: The apparent frequency of light increases as the object in space moves towards us. The light is shifted to blue end. In this case, there is decrease in the wavelength of the light. The frequency of the wave increases.
In the given problem, when the light source moves further away from an observer, the electromagnetic waves appear red in color.
Therefore, the correct option is (B).
Earth is more suitable because it has an atmosphere that is suitable for life, Earth has fresh water, and it is the safest distance from the sun. Plants increase the viability of life by producing Oxygen for animals and using carbon dioxide for photosynthesis. Volcanoes are present because of the pressure built up in the core of these planets. The inner planets are small in size compared to the outer planets. The temperature is much hotter and they are solid structures. Beyond Mars, these planets are gases and are much larger. There are many pictures and telescopes that explore the universe and show evidence of planets outside of the solar system.
