Answer: D.) increasing in distance from the earth
Explanation:
The <u>Doppler shift</u> is related to the Doppler effect and refers to the change in a wave perceived frequency (or <u>wavelength=color</u>) when the emitter of the waves, and the observer move relative to each other.
From there, it is deduced that the farther the object is, the more redshifted it is in its spectrum. For example, <u>as a galaxy moves away from the Earth, its espectrum turns towards the red and as the galaxy moves toward the Earth, its espectrum turns towards the blue.
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It should be noted that this effect bears its name in honor of the Austrian physicist Christian Andreas Doppler, who in 1842 proposed the existence of this effect for the case of light in the stars.
Answer: macroscopic outputs
Explanation:
Answer:
5524.8 m/s
Explanation:
Given that,
Altitude above the surface of earth is 6679 km, the Space Station can complete one orbit in 1.5 hours. We need to find the average speed of the ISS. The average speed of its orbit is given by :
R is distance from Earth
R = r + d, r is the radius of Earth
R = 6371 + 6679
R = 13050 km
So,
or
Hence, the average speed of ISS is 5524.8 m/s.
Answer:
Atoms that make up propane are hydrogen and carbon and they will form covalent bonds because they are non - metals.
Explanation:
Formula for propane is C3H8.
This means is is made up of Carbon and hydrogen.
Covalent bonding is defined as the process of sharing of electrons between atoms. Now, this type of bonding occurs between two atoms of the same element or elements that are close to one another in the periodic table. This suggests that the covalent bonding will occur primarily between nonmetals.
Now, the atoms of propane are made up of Carbon and hydrogen. These elements are non-metal and thus as described about covalent bonds, they will form covalent bonds because theg are both nonmetals.
