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irakobra [83]
3 years ago
11

Planets in our solar system do not revolve around the sun in perfect circles. Their orbits are more like ovals that scientists d

escribe as which of the following?
A.
revolutionary
B.
rotational
C.
periodical
D.
elliptical
Physics
2 answers:
finlep [7]3 years ago
8 0
D. Elliptical

Due to the shape in which they rotate
Svetlanka [38]3 years ago
4 0
The correct answer of the given statement above would be option D. The planets in our solar system do not revolve around the run in perfect circles. And their orbits are more like of a shape of an oval in which it is described as elliptical. This is according to the Law of Orbits by Kepler.
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A 40-cm-long tube has a 40-cm-long insert that can be pulled in and out. A vibrating tuning fork is held next to the tube. As th
Umnica [9.8K]

Answer:

The frequency of the tuning is 1.065 kHz

Explanation:

Given that,

Length of tube = 40 cm

We need to calculate the difference between each of the lengths

Using formula for length

\Delta L=L_{2}-L_{1}

\Delta L=74.7-58.6

\Delta L=16.1\ m

For an open-open tube,

We need to calculate the fundamental wavelength

Using formula of wavelength

\lambda=2\Delta L

Put the value into the formula

\lambda=2\times16.1

\lambda=32.2\ cm

We need to calculate the frequency of the tuning

Using formula of frequency

f=\dfrac{v}{\lambda}

Put the value into the formula

f=\dfrac{343}{32.2\times10^{-2}}

f=1065.2\ Hz

f=1.065\ kHz

Hence, The frequency of the tuning is 1.065 kHz

3 0
3 years ago
Use the energy equation from this week’s notes, your answer from
slamgirl [31]

An energy equation is a chemical equation which involves the energy that is evolved or absorbed in the reaction.

<h3>What is energy?</h3>

The term energy refers to the ability to do work. An energy equation is a chemical equation which involves the energy that is evolved or absorbed in the reaction.

This question is incomplete as the former energy equation is not shown. However, such equations can be used to know an endothermic or exothermic reaction.

Learn more about energy: brainly.com/question/1932868?

#SPJ4

3 0
2 years ago
How are the magnetic domains of a magnet different from the domains of an ordinary piece of metal?
My name is Ann [436]
Answer:

In a magnet, the domains all point in the same direction; in an ordinary piece of metal, they're all jumbled up.

Explanation:

In a magnet, the domains all point toward the north pole; in an ordinary piece of metal, they all point to the south pole.



Side note:
Hope this helps!
Please give Brainliest!
6 0
2 years ago
It takes 20s for 3x10^6 electrons to flow through a wire ,what is the current?
Elina [12.6K]

Answer:

Explanation:

The variables we know and are given are:

time, t = 20s

Charge, Q = 3x1-^-6 electrons, which is just 3x10^-6C (C stands for Coulombs, which is the unit for Charge)

We need to find the current, I, and since we know Q and t we can substitute these values into the given equation:

I=Q/t (which if you look at what the RHS is saying, its Charge over time, or more literally means the amount of charge passing a point over a period of time)

If we substitute these values, we will get I as:

I = Q / t

I = 3x10^-6 / 20

I = 1.5x10^-7 A

Hope this helps!

6 0
3 years ago
A body starts from rest and travels ‘s’ m in 2nd second, than acceleration is.
Lana71 [14]

Answer:

3m

Explanation:

3 0
2 years ago
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