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anastassius [24]

3 years ago

12

Bluetooth devices operate in the 2.4GHz range. What is the wavelength and energy of a photo of this light ? What part of the spe

ctrum does this fall in?

1 answer:

valina [46]3 years ago

7 0

That falls into the microwave spectrum.
Hope this helps.

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Another one please help

ladessa [460]

Possibly C or D i wanna say sorry if i’m wrong

4 0

2 years ago

PLEASE HELP!!!<br><br> What is the mass of one lead atom in amu?

alexandr402 [8]

Answer: 207.2

Explanation:

In imprecise terms, one AMU is the average of the proton rest mass and the neutron rest mass. This is approximately 1.67377 x 10 -27 kilogram (kg), or 1.67377 x 10 -24 gram (g). The mass of an atom in AMU is roughly equal to the sum of the number of protons and neutrons in the nucleus.

7 0

2 years ago

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How much energy is required to vaporize 14.27 grams of water at its<br> boiling point? *

laila [671]

Energy required to vaporize : 32.3 kJ

<h3>Further explanation </h3>

The heat to change the phase can be formulated :

Q = mLf (melting/freezing)

Q = mLv (vaporization/condensation)

Lf=latent heat of fusion

Lv=latent heat of vaporization

Mass of water = 14.27 g

Latent heat of vaporization ( boiling point of 100 ºC) : 2260 J/g

Energy required :

$\tt Q=m.Lv\\\\Q=14.27\times 2260\\\\Q=32250.2~J\approx 32.3~kJ$

6 0

2 years ago

Changing the number of protons in an atom ONLY changes the weight of an atom.<br><br> Need help ASAP

likoan [24]

Answer:

no

Explanation:

protons and electrons are equal to atomic number

3 0

3 years ago

What variable(s) determine the amount of kinetic energy an object has?

pashok25 [27]

Answer:

Explanation:

Khud karo answer hamsai kyun poch rahai hon

8 0

2 years ago

Read 2 more answers