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3 years ago

1. Why is Earth more suitable for life than Venus?

1 answer:

6 0

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.

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The radii of curvature of a biconvex lens are 4 cm and 15 cm. The lens is in air, its index of refraction is 1.5. An object is a

rewona [7]

Answer:

v = 6.315 cm

Explanation:

given,

R₁ = 4 cm = 0.04 m

R₂ = 15 cm = 0.15 m

n =1.5

$\dfrac{1}{f}=\dfrac{1}{v}-\dfrac{1}{u}=(n-1)(\dfrac{1}{R_1}-\dfrac{1}{R_2})$

$\dfrac{1}{v}-\dfrac{1}{-1}=(1.5-1)(\dfrac{1}{0.04}+\dfrac{1}{0.15})$

$\dfrac{1}{v}+1 = 0.5 \times 31.66$

$\dfrac{1}{v} = 15.833$

v = 0.06315 m

v = 6.315 cm

hence, the distance of the image from the back surface is v = 6.315 cm

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3 years ago

What do astronomers mean when they say that we are all star stuff?.

tekilochka [14]

Answer:

low-mass star.

Explanation:

Pls, choose me as brainliest!

7 0

3 years ago

Read 2 more answers

An object in motion does not posses potential energy.<br> O<br> True<br> False

Veronika [31]

True true true true true

6 0

4 years ago

Read 2 more answers

A flat circular plate of copper has a radius of 0.262 m and a mass of 61.5 kg.

Evgesh-ka [11]

Answer:

0.031 m

Explanation:

Density of copper = ρ = 8960 kg/m³

r = Radius = 0.262 m

m = Mass of plate = 61.5 kg

v = Volume of plate = Volume of cylinder = πr²h

$\rho=\frac{m}{v}\\\Rightarrow 8940=\frac{61.5}{\pi r^2h}\\\Rightarrow h=\frac{61.5}{\pi 0.262^2\times 8940}\\\Rightarrow h=0.031\ m$

So, thickness of plate is 0.031 m

5 0

4 years ago

I need help with and english 11 assignment. the assignment is to write 8 well written sentences about your walk to your next cla

Elena-2011 [213]

Answer:

This question can only be answered by you.

Explanation:

This question must be tailored specificly to you. whatever your next class is you must write 8 sentences on your walk to it. You can try going into detail about who you saw on the walk. where you went.what people were doing in the hallway. Did you look out a window? what did you see? how long did it take you to walk there? do you usually stop at your locker?

Also dont forget to use a colon ( : ): This can be used when listing things

semicolon (;) : is used as a pause (Seperation) in a long sentence.

Try incorperating some of the five senses in your sentences.

Good luck!

3 0

3 years ago