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2 years ago

Which of the following sets of characteristics describe what we know about the inner planets?

2 answers:

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The sets of characteristics describe what we know about the inner planets is that have rocky surfaces, no rings, and few or no moons. The answer is letter C. Also, they are smaller in sizes compared to the outer planets. The rest of the choices are characteristics of the outer planets.

DedPeter [7]2 years ago

3 0

Answer: The correct answer is Option c.

Explanation: There are 2 types of planets in Our Solar system:

1. Inner planets: There are 4 planets which are known as inner planets which are Mercury, Venus, Earth and Mars. These 4 planets lie close to Sun. These planets have rocky surfaces and have no ring system in them. The maximum number of moons in inner planets are 2. The orbital time of these planets is less than the outer planets.

2. Outer planets: There are 4 planets which are known as inner planets which are Jupiter, Saturn, Uranus and Neptune. These 4 planets lie far from the Sun. These planets have gaseous surfaces and have ring system in them. These planets have many number of moons as compared to the inner planets. The orbital time of these planets is more than the inner planets.

From the above information, the correct answer is option c.

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A bike lost 20% of its value after the first year, its value after the first year is $1039. Calculate the original price of the

musickatia [10]

Answer:

$1246.90

Explanation:

Since the bike lost $20%$ % of it's value and it now currently at $ $$1039$ , we have to do 20% * $1039 to find the amount of money lost. 20%*1039=207.8. We have to add it up to find the original value so 1039+207.8=$1246.8

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2 years ago

Which of the following units is used to measure force ?

Sati [7]

C.) Newton. & it's S.I. Unit of Force.

Hope this helps!

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3 years ago

Read 2 more answers

What is the atomic model that was found after Bohr’s model and how is it better ?

Lyrx [107]

Schrödinger found the quantum mechanical model of the atom after Bohr’s model.
It is better than Bohr’s model because you can use mathematical equations to find electrons certain position. Unlike Bohr’s which is just a “cloud” where the an electron could possibly be.

8 0

2 years ago

Draw the major organic product in the reaction scheme below. Be sure to clearly show stereochemistry (if applicable).

Juliette [100K]

Answer:

see explanation below

Explanation:

You are missing the reaction scheme, but in picture 1, I found a question very similar to this, and after look into some other pages, I found the same scheme reaction, so I'm gonna work on this one, to show you how to solve it. Hopefully it will be the one you are asking.

According to the reaction scheme, in the first step we have NaNH2/NH3(l). This reactant is used to substract the most acidic hydrogen in the alkine there. In this case, it will substract the hydrogen from the carbon in the triple bond leaving something like this:

R: cyclopentane

R - C ≡ C (-)

Now, in the second step, this new product will experiment a SN2 reaction, and will attack to the CH3 - I forming another alkine as follow:

R - C ≡ C - CH3

Finally in the last step, Na in NH3 are reactants to promvove the hydrogenation of alkines. In this case, it will undergo hydrogenation in the triple bond and will form an alkene:

R - CH = CH - CH3

In picture 2, you have the reaction and mechanism.

6 0

2 years ago

A ground water tank has its height 2m. Calculate the pressure at its bottom when it is completely filled with water.

Law Incorporation [45]

The pressure at the bottom : 19600 N/m²

<h3>Further explanation</h3>

Given

A ground water tank has its height 2m

Required

The pressure at its bottom

Solution

Hydrostatic pressure is the pressure caused by the weight of a liquid.

The weight of a liquid is affected by the force of gravity.

The hydrostatic pressure of a liquid can be formulated:

$\large{\boxed{\bold {P_h ~ = ~ \rho.g.h}}$

Ph = hydrostatic pressure (N / m², Pa)

ρ = density of liquid (kg / m³)

g = acceleration due to gravity (m / s²)

h = height / depth of liquid surface (m)

ρ = density of water (kg / m³) = 1000

g = acceleration due to gravity = 9.8 m/ sec²

The pressure

$\tt P=1000\times 9.8\times 2=19600~N/m^2$

6 0

2 years ago