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3 years ago

Write a 150-word paragraph or two that describes at least three everyday things that exist or occur because of science.

1 answer:

6 0

You were able to access the internet to post this question because of science. Medicine or vitamin supplements you take are a result of science. You use soap to wash your hands because of our understanding of how germs work, which is science. Practically anything you can think of has come about through the achievements of science. Image formation (due to phenomenon of reflection). Mirage (Its a everyday thing in deserts due to refraction) 

Dispersion of light (Color recognition by our eyes due to dispersion). Three actual everyday occurence that are created through science are Nuclear power. Antibiotc Drugs- to give some merit to the above three, laser light

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A vector is a quantity that has what two items

alexandr1967 [171]

A vector has a size and a direction. The size is called the magnitude of the vector.

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4 years ago

Water at -5°c in a solid explain

Zolol [24]

The freezing point of water is 0 degree Celsius.
So as soon as the water’s temperature becomes 0 or anything lesser than that ,
It will become ice, which is the solid form of ice

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4 years ago

How does the sun transmit energy from millions of miles away into the Earth system? 'Energy' and 'power' are often confused, but

Leona [35]

Answer:

Energy from sun travels to the earth by radiation of waves.

Energy is the capacity to do the work whereas power is the rate of doing work or the rate of energy transfer.

Energy always transforms from higher grade to a lower grade.

Positive feedback are not good when it disturbs the stability too much over a wide range.

No, negative feedback are not always bad because they enhance the stability of our system, resist the change in a system making it consistent and have a narrower range of variation.

Explanation:

The energy from the sun travels a huge distance in vacuum and atmosphere.

The solar energy travels to the earth in the form of electromagnetic radiations which do not require any medium of transmission and are capable of travelling in vacuum by the mode called radiation. In this mode the packets of energy get directly transmitted from the source to its surroundings. This packet of energy is called quanta.

Energy is the capacity to do work. Everything that we see and feel around us is some sort of energy. Every matter is the condensed form of energy the other forms that we cannot touch or feel is the wave form of energy. The wave form of energy stays in two form either stored in a mass or it is in transition. Now the concept of power arises form the energy in motion, power is defined as the rate of doing work or the rate of energy transfer. We usually use the term power for the energy in motion.

We can burn a gallon of fuel only once because it undergoes a chemical change and the chemical changes are mostly permanent in nature. There is a certain direction to which the energy can flow spontaneously. When we burn the fuel then the stored chemical energy of the fuel gets converted into heat and light and the heat energy released during the combustion of the fuel is sufficient to further provide the heat of combustion of fuel.

Energy always transforms from high grade to the lower grade and the converse is not possible spontaneously.

Positive feedback are not good when it disturbs the stability too much over a wide range.

No, negative feedback are not always bad because they enhance the stability of our system, resist the change in a system making it consistent and have a narrower range of variation.

6 0

3 years ago

What term is given to a substance that can dissolve in a particular liquid?

Norma-Jean [14]

Answer:

Solute

Explanation:

Something dissolved in a liquid is called a solution. The dissolved substance is called the solute. The liquid used for dissolving is called the solvent.

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3 years ago

Read 2 more answers

If the gas mileage of a Honda Civic car is 38 miles per gallon how many liters of gasoline would the car use to move from the Es

Troyanec [42]

Answer:

6.25

Explanation:

M = d/g........................ Equation 1

making g the subject of the equation,

g = d/M............................. Equation 2

Where M = mileage per gallon, d = distance move from Essex campus to Catonsville campus, g = amount of gasoline used

Given: M = 38 miles per gallon, d = 37.2 km

If 1 kilometer = 0.62 miles

Then, 37.2 km = 37.2×0.62 miles = 23.064 miles

Substituting these values into equation 2,

g = 38/23.064

g = 1.648 gallon

g ≈1.65 gallon

Thus,

If, 0.264 gallon = 1 liters.

Then, 1.65 gallon = 1.65×1/0.264 = 6.25 liters.

g = 6.25

Thus the car will use 6.25 liters of gasoline to move from the Essex campus to the Catonsville campus.

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3 years ago