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3 years ago

Which material is likely to slow the flow of electric charges the most ? explain.

Physics

2 answers:

katen-ka-za [31]3 years ago

6 0

Answer:

Non metals

Explanation:

Atoms of metals do not hold their electrons to themselves. Instead they allow them to float around them delocalised. This is important because it is this characteristic that allows metals to be good conductors of electricity since electrons are free to move around to carry a charge.

With the exception of carbon and silicon, non metals do not have this characteristic. Each atom hold on to its electrons within their orbits for the most part. This makes non metals very pour at allowing charges to flow through them.

alekssr [168]3 years ago

3 0

Metal as it is a conductor of electricity

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The mass of a glass beaker is known to be 24.2 g. Approximately 5 mL of water are added, and the mass of the beaker and water is

Kamila [148]

Answer: 2 significant figures in 6.4

Explanation:

Significant figures : The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

Rules for significant figures:

Digits from 1 to 9 are always significant and have infinite number of significant figures.

All non-zero numbers are always significant. For example: 654, 6.54 and 65.4 all have three significant figures.

All zero’s between integers are always significant. For example: 5005, 5.005 and 50.05 all have four significant figures.

All zero’s preceding the first integers are never significant. For example: 0.0078 has two significant figures.

All zero’s after the decimal point are always significant. For example: 4.500, 45.00 and 450.0 all have four significant figures.

Mass of beaker = 24.2 g

Mass of beaker + mass of water = 30.625 g

Mass of water = 30.625 - Mass of beaker = 30.625 - 24.2 = 6.4g

The rule apply for the addition and subtraction is :

The answer would contain same number of decimal places as there are in the least precise number present.

Thus there are 2 significant figures in mass of water which is 6.4 grams.

7 0

3 years ago

Can someone explain this to me? 20 POINTS!

Anarel [89]

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Explanation:

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3 years ago

What is word meaning "heated to a glow"?

adell [148]

I think the word you want is "incandescent".

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3 years ago

What is meant by a transverse wave?

lianna [129]

In a transverse wave the particle displacement is perpendicular to the direction of wave propagation. The animation below shows a one-dimensional transverse plane wave propagating from left to right. The particles do not move along with the wave; they simply oscillate up and down about their individual equilibrium positions as the wave passes by. Pick a single particle and watch its motion.

The S waves (Secondary waves) in an earthquake are examples of Transverse waves. S waves propagate with a velocity slower than P waves, arriving several seconds later.

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3 years ago

Which of the following directly contributed to soil erosion on the Great Plains in the 1930s?

NISA [10]

Answer:

Farming

Explanation:

There were three droughts in the 1930s.

Farmers had deep plowed the land and killed the native grasses that trapped soil and moisture.

During the droughts, the moisture evaporated, and the loose soil turned to dust.

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4 years ago