Physics, 19.02.2020 02:53 hazle9409

The distance between the Sun and the Earth is 1 AU (150 million km). Calculate the distance traveled by the Earth in one year. b. It takes 365 days for the Earth to complete one revolution around the Sun. Calculate the speed (in km/s) with which it is going around the Sun. (Hints: speed = distance/time, convert one year to seconds and 1AU to meters.)

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Answer from: devinluck100

a. $9.42\times 10^{11} m$

b.29.9 Km/s

Explanation:

We are given that

The distance between the Sun and the Earth=1 AU=150 million= $150\times 10^9 m=1.5\times 10^{11}$ m

1 million km= 10^9 m

Time=365 days

a.Radius=r= $1.5\times 10^{11} m$

The distance traveled by Earth in in 1 year= $2\pi r=2\times 3.14\times 1.5\times 10^{11}=9.42\times 10^{11} m$

By using $\pi=3.14$

The distance traveled by Earth in in 1 year= $9.42\times 10^{11} m$

b.The distance traveled by Earth in in 1 year (365 days)=1 revolution= $9.42\times 10^{11} m=9.42\times 10^{11}\times 10^{-3}Km=9.42\times 10^8 km$

1 km=1000 m

Time =365 days= $365\times 24\times 60\times 60=31536000 s$

1 day=24 hours

1 hour=60 minutes

1 minute=60 seconds

Speed= $\frac{distance}{time}$

Using the formula

Speed of Earth= $\frac{9.42\times 10^8}{31536000}=29.9 km/s$

Hence, the speed of Earth=29.9 km/s

Answer from: Quest

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length

An object is located 5.0 cm from a convex lens. the lens focuses light at a distance of 10.0 cm. wha

Answer from: Quest

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

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The distance between the Sun and the Earth is 1 AU (150 million km). Calculate the distance traveled...

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