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ella [17]
3 years ago
13

What universal force is primarily responsible for keeping satellites in orbit around Earth?

Physics
2 answers:
g100num [7]3 years ago
6 0
<span>A) electromagnetic force </span>
xeze [42]3 years ago
3 0
Your answer to the question is C 

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Upon being struck by 240-nm photons, a metal ejects electrons with a maximum kinetic energy of 1.45 eV. What is the work functio
Bess [88]

Answer:

W = 3.73 eV

Explanation:

Given data:

wavelength of photons 240 nm

kinetic energy 1.45 eV

B y using photoelectric equation

Kinetic Energy  =  Photon Energy - work friction

K.E = \frac{hc}{\lambda} -W

\frac{hc}{\lambda} = \frac{6.63\times 10^{-34}\times 3\times 10^8}{240\times 10^{-9}\times 1.6\times 10^{-19}} eV

                              = 5.179 eV

                              = 5.18 eVW =  \frac{hc}{\lambda} - K.E

    = (5.18 - 1.45) eV

W = 3.73 eV

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3 years ago
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Elena-2011 [213]
Because plate movements have raised ancient sea floors above sea level, _________?

<span>Answer : Limestone that began as coral reefs can be found on the continents.</span>

3 0
3 years ago
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Which jovian planet should have the most extreme seasonal changes?
saul85 [17]

Answer:

Uranus

Explanation:

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7 0
2 years ago
What is the name for a wave that requires energy to produce it and a medium to travel through?
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....mechanical wave...
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During free fusion, the eyes _______ in order to view a stereogram without a stereoscope. A. use the pictorial depth cue B. are
Andru [333]

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D

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