The strength of the electric field 0.5 m from a 6 µC charge is N/C. (Use k = 8.99 × 109 N•

Answers

Answer 1

Answer: The formula for Electric Field Strength:

E = Q /(4πε₀r²)

Note:

1 /(4πε₀) = k = 8.99 * 10⁹ Nm²/C²

Q = 6 μC = 6 * 10⁻⁶ C. r = 0.5m

E = kQ / r²

E = (8.99 * 10⁹ * 6 * 10⁻⁶) /(0.5²) Use a calculator

E = 215.6 * 10³ N/C

Electric field strength = 215 600 N/C.

I hope this helps.

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A pair of scientists proposes two different theories to explain the same set of observations. Which of the following best explains the value of these competing theories?Competing theories can be a source of new, testable ideas. Competing theories are necessary to transform a theory into a law. Competing theories generate controversy that helps popularize ideas. Competing theories allow scientists to combine the most interesting aspects of both theories.

a. Define Valency. b. Write the symbol and valency of the following : (i) Oxygen (ii) potassium 7. a. Magnesium burns in Oxygen to form Magnesium Oxide. a) Name the reactants b) Name the Products c) Write the word equation for the above reaction.

Answers

⚘ YourAnswers:

A) Valency is the combining capacity of any element. Valence electrons refers to the electrons found in the outermost shell of the atom of the element.

B) Symbol and valency:

Oxygen(O) = (At. no. 8) = -2(Valency)
Potassium(K) = (At. no. = 19) = +1(Valency)

C) The reaction would be:

$\large{ \boxed{ \rm{2Mg + O_2 \longrightarrow \: 2MgO}}}$

Reactants = Magnesium and Oxygen
Products = Magnesium oxide
Word equation:

$\large{ \boxed{ \rm{Magnesium + Oxygen \longrightarrow Magnesium oxide.</p><p>}}}$

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Answer:

Oxygen-Symbol-O Potassium Symbol-K

Diffraction patterns are due to

Answers

diffraction patterns are due to diffraction i think or self interference

Answer:

Diffraction patterns are due to INTERFERENCE.

Explanation:

1. How does an area’s weather differ from the area’s climate? (1 point). A.Weather involves temperature and precipitation and climate involves only temperature.. B. An area’s weather depends on where it is located on Earth and the area’s climate does not.. C.An area’s weather does not change very much and an area’s climate changes many times.. D.Weather is the area’s day-to-day conditions and climate is the area’s average conditions.. 2. All of the following factors contribute to Earth’s climate EXCEPT (1 point) . latitude.. longitude.. transport of heat by winds.. shape and elevation of landmasse

Answers

An area's weather differs from an area's climate because weather is the area's daily conditions. The climate is the average conditions of the area.

Longitude does not contribute to the earth's climate. Longitude are imaginary lines that have no impact.

Weather is the area's day-to-day conditions, such as temperature and precipitation, while climate refers to the average conditions over a long period of time. All of the given factors contribute to Earth’s climate except longitude. The correct options are D and B.

A location's short-term atmosphericconditions, such as temperature, humidity, precipitation, wind speed, and air pressure, are referred to as the "weather."

Even within a single day, it might fluctuatedramatically from one day to the next. The long-term average weather patterns of a region are represented by climate, which often spans decades or centuries.

Latitude, wind-borne heattransport, form and height of landmasses, and all the other elements mentioned affect the climate of the planet.

Latitude has a big impact on how solar energy is distributed and how temperature patterns are affected.

The movement of heat by winds contributes to the distribution of heat and moisture around the world, which influences climate fluctuations.

Thus, the correct options are D and B.

For more details regarding precipitation, visit:

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Where is the field of each charge the strongest ?(A. positive charge arrows pointed out)
(B.negative charge arrows pointed inward)

Answers

First we have to agree on what you mean by "strongest".

To me, "strongest" means the place where it exerts the greatest
force on another charge that happens to be passing by.

In both cases ... 'A' and 'B' ... that's going to be right smack on top
of the charge itself, or as close to it as you can get.

On drawings, it's the spot where the field 'lines' are closest together.

It makes no difference whether the original charges are positive or negative.

What happens to water when it changes to ice?Its density increases.

Its density decreases.

Its mass increases.

Its mass decreases.

Its volume increases.

Its volume decreases.

Answers

There are two answers to this:

Its density decreases
Its volume increases

You notice that ice floats on water, this means that its density is less. The mass remains the same because you did not add or remove anything. But what causes the density to decrease then? For density to change, there needs to be a change in either the volume or the mass of the object. Density is calculate by mass/volume. Since the mass did not change, the volume must have. So in this case, the volume increases. Hence, this is what causes it to be less dense.

Answer

B and E

Explanation:

water molecules are connected with each other through hydrogen bonding

Julie's psychologist helped her get over her fear of spiders. Which goal of psychology has the phycologist met ?

Answers

The four goals of psychology are: describe observed phenomena, explain them, predict what may occur as a result of them and control behaviour as a result. Julie’s psychologist has helped Julie control her behaviour - her fear response to spiders - so they have met the ‘control behaviour’ goal of psychology.

Answer:

C.control

Explanation:

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