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Rudik [331]
4 years ago
9

Help with questions

Chemistry
1 answer:
gulaghasi [49]4 years ago
8 0

1) This type of energy transfer is called conduction.

2) Hydroelectricity

3)  petroleum naphtha, gasoline, diesel fuel, asphalt base, heating oil, kerosene, liquefied petroleum gas, jet fuel and fuel oils. All of these come out of oil refining process


Hope this helped and plz mark as brainliest!

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Refraction occurs when the speed of light changes as it travels between mediums.<br><br><br> T<br> F
Mariana [72]

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Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light.The wavelength decreases as the light enters the medium and the light wave changes direction.

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The nation on average uses around 10 Million tons of salt per year to de-ice roads. How many kilograms of salt is this? (please
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A man threw a Frisbee which weighs 3 kg with a velocity of 5 m/s. What is the KE in the system? *
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What is the mass of an element with 15 protons, 13 electrons, and 11 neutrons? *
RSB [31]

Answer:

The mass of the element is 26.20 amu

Explanation:

In this question, we are asked to calculate the mass of an element with 15 protons, 13 electrons and 11 neutrons

To calculate the atomic mass of the element, we take into consideration the masses of the individual sub atomic particles

Electrons have 0 atomic mass unit(their masses are negligible) we have no business here, Protons have a mass of

1.00727647 amu, while the mass of neutron is 1.0086654 amu

The mass of 15 protons is thus 15 * 1.00727647 = 15.10914705 amu

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11.0953194 amu

Adding this together, we have ; 11.0953194 + 15.10914705 = approximately 26.20 amu

6 0
3 years ago
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