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vredina [299]
2 years ago
15

Every rock that you find must be or have at one time been a/an​

Physics
1 answer:
Vesnalui [34]2 years ago
6 0

Answer:

crystal

Explanation:

well most rocks are like that

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Calculate the energy of a photon of electromagnetic radiation whose frequency is 2.94 x 10 to the 14th xbox one
DIA [1.3K]

Answer:

1.95\cdot 10^{-19} J

Explanation:

The energy of a photon is given by:

E=hf

where

h=6.63\cdot 10^{-34}Js is the Planck constant

f=2.94\cdot 10^{14} Hz is the frequency of the photon

Substituting the numbers into the equation, we find:

E=(6.63\cdot 10^{-34} Js)(2.94\cdot 10^{14} Hz)=1.95\cdot 10^{-19} J

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3 years ago
The density of mercury is 13.6 g/ml. what is its density in lbs/L
solong [7]

Answer:

can u send a picture to identify it

Explanation:

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3 years ago
The boiling point for liquid nitrogen at atmospheric pressure is 77k. Is the temperature of an open container of liquid nitrogen
algol13
Answer:
It would be lower than because, if the boiling point of that element is 77 Kelvin degrees then if it isn’t at boiling point it would automatically be cooler than that. Even if it’s at its original state. The normal temperature of Liquid Nitrogen is really cold -320.8 degrees.

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3 years ago
HELP!! ILL GIVE BRAINLIEST As we've learned so far, the popular model of the solar system shifted over
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3 years ago
9. If the frequency of a certain light is 3.8 x 1024 Hz, what is the energy of this light?
german

Answer:

E=hf

Were, h = Planck constant 6.67*10^11

E=3.8*10^24 * 6.67*10^11= 2.508*q0^36j

4 0
3 years ago
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