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Vladimir79 [104]
2 years ago
15

Two charges of magnitude ‒Q and +4Q are located as in the figure below. At which position (A, B,

Physics
1 answer:
NeTakaya2 years ago
6 0
Jamaljajajjajsjsjjejdjdnjdisijsjsjejwoiw
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How many electrons will a single atom of sulfur with no charge and no bonds have in its valence shell?
Svet_ta [14]

Answer:

There are 6 electrons in the outermost shell.

Explanation:

Sulphur is a non-mettalic element which is in the period 3 and group .6on the periodic table. It has an atomic number of 16 and a Mass number of 32. Atomic number tells you the number of electrons in an electrically neutral atom. It has the electronic configuration of 1s2 2s2 2p6 3s2 3p4.

The orbitals have a formula 2n^2 where n = 0, 1, 2, 3 etc.

In the shells, n = 1 so there are 2 electrons. For n = 2, 2*(2)^2 = 8 electrons. So, 16 - (8 + 2) = 6 electrons in the 3 shell (outermost shell)

Therefore from the electronic confriguration above, there are 6 electrons in the outermost shell.

6 0
3 years ago
Read 2 more answers
Define scalar and vector
Andreas93 [3]

The quantity is either a vector or a scalar. These two categories can be distinguished from one another by their distinct definitions: Scalars are quantities that are fully described by a magnitude (or numerical value) alone. Vectors are quantities that are fully described by both a magnitude and a direction.

7 0
2 years ago
Assume a change at the source of sound reduces the wavelength of a sound wave in air by a factor of 3.
noname [10]

Explanation:

The speed of a wave is given by :

v=f\lambda ......(1)

(i) Here, the wavelength of a sound wave in air reduces by a factor of 3. Equation (1) becomes :

\lambda=\dfrac{v}{f}

Wavelength and frequency are inversely proportional to each other. So, if wavelength of a sound wave in air reduces by a factor of 3, then the frequency will increases by a factor of 3.

(ii) It remains the same.

8 0
3 years ago
Calculate the average force that must be exerted on a 0.145 kg baseball in order to give it an acceleration of 130 m/s^2. (round
r-ruslan [8.4K]

Answer:

18.9 <em>N or </em><em>19</em><em> N </em>rounded

Explanation:

m = 0.145 kg

a = 130 m/s^2

F = ma = (0.145 kg)(130 m/s^2) = 18.9 <em>N</em>

7 0
3 years ago
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Define heat capacity of a substance.<br>Write the S.I unit of heat capacity.​
creativ13 [48]

Define heat capacity of a substance:

  • The heat capacity of a substance can be defined as the amount of heat required to change its temperature by one degree.

Write the S.I unit of heat capacity:

  • Joule per Kelvin

\:  \:  \:

  • Joule per Celsius

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

-,-

6 0
2 years ago
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