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3 years ago

Identify the origins of breakdown when using a spectrum analyzer

1 answer:

7 0

Four regions of the electromagnetic spectrum that astronomers use when observing objects in the space are the following enumerated answers.

1. First is Ultraviolet

2. Next is Infrared

3. Then the radio

4. Lastly the Visible lights.

These are the answers to the problem.

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define atmospheric pressure, prove that presence of atmospheric pressure with the help of an activity

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I don understand this?

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3 years ago

3. Elements are organized on the<br><br> according to their

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I don’t know if I’m completely right but Elements are arranged from left to right due to their atomic number

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4 years ago

Which of the following is a conversion from chemical energy to thermal energy? Coal is burned to boil water. Food is digested an

vlada-n [284]

Answer:

All of the above

Explanation:

all of the reactions use up energy to achieve the end product.

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4 years ago

Read 2 more answers

A 55-liter tank is full and contains 40kg of fuel. Find using Sl units: • Density p. • Specific Weight y • Specific Gravity Answ

Pavlova-9 [17]

Answer:

p = 727.273 kg/m3, y = 7134.545 N/m^3, SG = 0.7273

Explanation:

Density is simply the amount of mass of a substance per unit of volume. It can be found by dividing the mass in kg by the volume im m^3:

$p = \frac{m}{v} = \frac{40kg}{55lt*\frac{1 m^3}{1000 lt}} = 727.273 kg/m^3$

Specific weight is the weight of the substance per unit of volume. The weight is the mass of the material times the gravity, and it represents the force that the earth exerts on an object. Another way of calculate this value, its multiplying the density of the fuel times the gravity. Then:

$y = p*g = 727.273 kg/m^3 * 9.81 m/s^2 = 7134.545 N/m^3$

Specific Gravity is the ratio of the density of the substance to the density of a reference substance. For liquids, the reference substance is water at 4°C, which has a density of about 1000 kg/m^3.

$SG =\frac{ p_{fuel}}{p_{water}} = \frac{727.273 kg/m^3}{1000 kg/m^3} = 0.7273$

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3 years ago

How does solar energy work

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Answer:

When the sun shines onto a solar panel, energy from the sunlight is absorbed by the PV cells in the panel. This energy creates electrical charges that move in response to an internal electrical field in the cell, causing electricity to flow.

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3 years ago