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4 years ago

On a cold winters da,y,If you left a drink setting outside,it could freeze.Explain why in a complete sentence

1 answer:

6 0

Hello!

On a cold winters day, if you left a drink setting outside, it could freeze because the heat (related to the kinetic energy) of the atoms in the drink will be transferred to the environment to achieve energy equilibrium.

Heat transfer occurs by various mechanisms, flowing from the hottest body to the coldest, that's why the heat goes from the drink, which has a higher temperature (and kinetic energy) to the environment, which has a lower temperature. This is described by the second law of thermodynamics

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What is the energy of photons emitted by the led at a frequency of 610 thz mcat?

Ksju [112]

The photon energy is the energy carried by a single proton.

The equation used for calculating photon energy is:

E = hc / λ

where h = Planck constant

c = speed of light and

λ = wavelength of photon

frequency = f = c / λ

replace c /λ with f in the equation of photon energy

E = hf

frequency = 610 thz = 6.1 x 10¹⁴hz

h = 6.26 x 10⁻³⁴ js

E = 6.26 x 10⁻³⁴ x 6.1 x 10¹⁴

<span>E = 3.8 x 10</span>⁻¹⁹ j

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3 years ago

Need help ASAP please and Thank you

zmey [24]

Answer:

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3 years ago

Why is Newton's law of gravitation called universal law?

NeX [460]

Answer:

Newtons law of gravitation is called the universal law of gravitation because it is applicable for all masses at all distances, independent of the medium.

Explanation:

$\sf{}$

For two masses m1 and m2 placed at a distance d, the gravitational force between them will always be given by: Fg=Gd2m1m2. That's why it is a "universal" law.

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3 years ago

How many minutes would it take a light wave to travel from the planet Venus to Earth? (Average distance from Venus to Earth = 28

Gnesinka [82]

Answer:

$t=2.51min$

Explanation:

The time taken by the light to travel a given distance is defined as:

$t=\frac{d}{c}$

Here c is obviously the speed of light. Now we convert the average distance form Venus to Earth to meters:

$28*10^{6}mi*\frac{1609.34}{1mi}=4.51*10^{10}m$

Finally, we calculate the minutes taken by the light to travel from Venus to Earth:

$t=\frac{4.51*10^{10}m}{3*10^8\frac{m}{s}}\\t=150.33s*\frac{1min}{60s}=2.51min$

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4 years ago

Anyone who guesses what this means gets brainliest answer!!

hram777 [196]

Answer:

I believe this is German for something day how are you????? I was talking about the holocaust again in school and decided to start learning German so if im wrong then.. wowww!

Explanation:

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3 years ago

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