PLEASE HELP ME I WILL BE RATING BRAINLIEST VERY URGENT: Can the number of electrons passing a point in a circuit be a decimal?

Answers

Answer 1

Answer:

Answer: No

Explanation:

Electrons have negative charge. It's charge can be decimal because it's about 1.6*10-19 But number of electrons passing through a metal cannot be a decimal number. If you use Q = ne

Q - total charge

e - Charge of an electrone

n - Number of electrons

You might get decimal value for n but it doesnt mean that it shoud have decimal value . Then you have to get nearest less digit value for answer. We cant divide electrons in to pieces

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Stu wanted to calculate the resistance of a light bulb connected to a 4.0-V battery, with a resulting current of 0.5 A. He used the formula R = VI and obtained an answer of 2 . Was Stu’s answer correct? How do you know?

Answers

Answer:

The answer is not correct.

Explanation:

Stu's answer is not correct, the equation to use is known as the law of ohm. In which the voltage is defined as the product of the current by the resistance, then we will see this equation.

$V = I*R\nwhere:\nI = current [amp]\nR = resistance [ohm]\nV = voltage [volts]\n$

In order to find resistance, this term is found multiplying the current on the right side of the equation, therefore the current will be divided on the left side of the equation.

$R=(V)/(I) \nreplacing:\nR=(4)/(0.5) \nR=8[ohms]$

That is the reason that the result found by Stu is not correct.

Answer:

Sample Response: Stu's answer was incorrect. According to Ohm's law, R = V/I. This is the equation that should be used to obtain the correct answer, which is 8 ohms.

Explanation:

A converging lens can produce both real and virtual images depending on the position of the object. Explain when converging lenses can produce virtual images and describe the image produced.A) A virtual image is produced if the object is on the focal point, the image is upright, enlarged and on the same side of the lens as the object.

B) A virtual image is produced if the object is on the focal point, the image is inverted, enlarged and on the opposite side of the lens from the object.

C) A virtual image is produced if the object is between the focal point and the lens, the image will be upright, enlarged and on the same side of the lens
as the object.

D) A virtual image is produced if the object is between the focal point and the
lens, the image will be upright, reduced and on the opposite side of the
lens from the object.

Answers

A virtual image is produced if the object is between the focal point and the lens.

What is a converging lens?

A converging lens is a lens that can produce both real and virtual images depending on the position of the object.

A virtual image is produced if the object is between the focal point and the lens, the image will be upright, enlarged and on the same side of the lens as the object.

Learn more about converging lens:brainly.com/question/14299912

#SPJ2

Answer: C

Explanation:

When the two pistons have different surface areas, how will the pressure exerted on them compare?This is in a hydraulic system. Pascals principle
will the pressure be the same on both or will one be greater

Answers

Pascal's principle says that the pressure is the same
everywhere in a confined fluid, no matter how much
or how little area you're looking at.

THAT's why hydraulic systems work ... because the
SAME pressure over MORE area adds up to MORE force.

What unsusual characteristic do the cysts of brine shrimps, the resurrection fern and Tardigrades. What adaptations do they have which enable them to survive when other organisms would die?

Any help would be much appreciated.

Answers

Brine shrimps can reproduce in two ways. 1) viviparious or live reproduction and 2) oviparious or production of eggs that hatch after being expelled from the body. The eggs, coated in chorion coating, are called cysts.

Through the reproduction of cysts, the survival of brine shrimps increase even when dealing in extreme conditions. The cysts can remain in total stasis for two years in oxygen less surroundings, they can survive freezing temperature and boiling tempreture. When conditions improve and eggs are placed in salt water, they hatch within a few hours and increase the population of brine shrimps.

Resurrection ferns are called as such because they resurrect after they shrivel, though the fern does not really die. In extremely hot or conditions, these ferns can lose 75% of their water content, even losing 97% water content if suffering under extreme drought, causing them to shrivel and look like dead ferns. But, when these ferns are again exposed to water, they resurrect and becomes green and healthy. This unusual ability help these ferns to survive under extremely harmful conditions.

Tardigrades are known as nature's toughest animals. They can live in solid ice, intense radiation of space, and boiling water. They can also survive in the desert for ten years without drinking water, as well as, in the deepest part of the sea. Their survival is based on their unusual characteristic to change their form to survive without water.

In the absence of water, tardigrades can completely dry out. The absence of water in their body urges them to replace it with a sugar called trehalose. Trehalose then becomes their source of life until water becomes available to tardigrades for consumption.

What impact did Sir Isaac Newton have on modern society?

Answers

Sir Isaac Newton laid the foundations for the creation of modern calculus through his work in the field of mathematics. His discovery of formulas that could be used to derive the areas of curved objects led to many of the mathematical breakthroughs of the last two centuries. He also helped in the field of science by discovering laws such as the universal gravitation law.

Which liquid will evaporate the fastest water salt water pepsi and gatorade?

Answers

The liquid that will evaporate the quickest would be water.
~The rest are mixtures, and have more ingrediants in them, therefore the answer should be water. (in which it has no other ingrediants in it but water itself)

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