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blondinia [14]
3 years ago
10

The sunlight hits the surface of a lake this will like caused

Physics
2 answers:
o-na [289]3 years ago
4 0
The answer is "C.Evaporation"
ziro4ka [17]3 years ago
3 0
A). No. Condensation happens when you take heat out of a gas.

b). No.  I'm not sure what transpiration is.

<u>c). Yes.</u> Evaporation happens when you add heat to a liquid.

d). No.  Sublimation sometimes happens when you add heat to a solid.
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In the photoelectric effect, a photon with an energy of 5.3 × 10–19 J strikes an electron in a metal. Of this energy, 3.6 × 10–1
valentina_108 [34]

Answer:

The velocity of the photo electron is 6.11\times 10^5\ m/s.

Explanation:

Given that,

Supplied energy, E_s=5.3\times 10^{-19}\ J

Minimum energy of the electron to escape from the metal, E_e=3.6\times 10^{-19}\ J

We need to find the velocity of the photo electron. The energy supplied by the photon is equal to the sum of minimum escape energy and the kinetic energy of the escaping electron. So,

5.3\times 10^{-19}\ J=3.6\times 10^{-19}\ J+K\\\\K=5.3\times 10^{-19}-3.6\times 10^{-19}\\\\K=1.7\times 10^{-19}\ J

The formula of kinetic energy is given by :

K=\dfrac{1}{2}mv^2\\\\v=\sqrt{\dfrac{2K}{m}} \\\\v=\sqrt{\dfrac{2\times 1.7\times 10^{-19}}{9.1\times 10^{-31}}} \\\\v=6.11\times 10^5\ m/s

So, the velocity of the photo electron is 6.11\times 10^5\ m/s.

4 0
3 years ago
Need help with stu*pid science thing that I keep getting wrong, augh!!
Kryger [21]

Answer:

i think it is iron

Explanation:

its the only one that makes sense to me

4 0
3 years ago
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What wavelength would a ripple in water have if the frequency is 1.8 Hz and a
Yuki888 [10]

Explanation:

825m/s / 1.8Hz = 458.33m

6 0
3 years ago
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2. What is the power rating of an engine capable of lifting a 100 kg object 5 m vertically
Leya [2.2K]
Work=f.d
Work=100*50 = 500
Power = work/time = 500/4
=125 watt
7 0
3 years ago
8. Noticing how much food is on your lunch<br> tray is a quantitative observation because
zhenek [66]

Answer:

you are making an observation that uses numbers.

Explanation:

5 0
3 years ago
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