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3 years ago

What is the relationship between the electric field strength at a point and its distances from the source charge?

Chemistry

1 answer:

diamong [38]3 years ago

6 0

Explanation:

The intensity of electric field from a certain point that is assumed is proportional inversely to the square of distance’s magnitude from source. As one can see the electric field intensity is proportional inversely. Then the increase in magnitude of the space between source charge the electric field intensity decreases.

Since the proportionality is to square of distance, hence change or increase in distance is squared and that many times intensity of electric field decreases. So relation between them is inverse proportionality.

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Where is most of an atom's atomic mass?

Kamila [148]

Answer:

The nucleus contains the majority of an atom's mass because protons and neutrons are much heavier than electrons, whereas electrons occupy almost all of an atom's volume. The diameter of an atom is on the order of 10−10 m, whereas the diameter of the nucleus is roughly 10−15 m—about 100,000 times smaller.

Explanation:

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3 years ago

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Verizon [17]

Answer:

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3 years ago

A 135 g sample of a metal requires 2.50 kJ to change its temperature from 19.5°C to 95.5°C to 100.0°C?

just olya [345]

Answer:

0.23J/g°C

Explanation:

Given parameters:

Mass of sample = 135g

Amount of heat = 2.5kJ

Initial temperature = 19.5°c

Final temperature = 100°C

Unknown:

Specific heat capacity of the metal = ?

Solution:

The specific heat capacity of a substance is the amount of heat required to the raise the temperature of 1g of the substance by 1°C.

H = m C (T₂ - T₁ )

H is the amount of heat

m is the mass

C is the specific heat capacity

T₂ is the final temperature

T₁ is the initial temperature;

2.5 x 10³ = 135 x C x (100 - 19.5)

2500 = 10867.5C

C = $\frac{2500}{10867.5}$ = 0.23J/g°C

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3 years ago

A gas mixture contains 10.0g of nitrogen and 5.00g of oxygen gas. calculate the partial pressure of oxygen gas in that mixture i

Alekssandra [29.7K]

The answer would be 0.85atm.

Have a nice day!

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