Answer:
3.71 eV
Explanation:
λ = Wavelength of light = 224 nm = 224 x 10⁻⁹ m
c = speed of electromagnetic wave = 3 x 10⁸ m/s
V₀ = stopping potential = 1.84 volts
W₀ = Work function of the metal = ?
Using the equation
= 5.94 x 10⁻¹⁹
= 3.71 eV
Speed (v) = wavelength (λ) x frequency (f)
If speed is constant and frequency is reduced by factor of 3, you will need to increase wavelength by the same factor so that your changes reduce out.
Answer is A.
Answer:
1. Static friction = not moving
2. sliding friction = moving
3. rolling friction = wheels
4. bumpy the surfaces are
5. how heavy the object is
6. it is easier to keep an object moving
7. static friction is GREATER than sliding friction
Explanation:
The gravitational pull must be greater than the heat pressure's outward push. A gas cloud that is falling builds up thermal energy, which creates thermal pressure that can stop the gravitational collapse.
<h3>What phenomenon prevents an interstellar gas cloud from collapsing gravitationally if it is massive enough to become a star?</h3>
Even when there is no fusion taking on in the star's core, degeneracy pressure can stop a star from contracting gravitationally.
<h3>What mechanism prevents the gravitational collapse of an interstellar gas cloud when it attains a star-like mass?</h3>
For there to be a large gravitational pull, there must be a lot of material present, and for there to be little gas pressure, there must be very low temperatures. Interstellar clouds of gas are typically.
To know more about gravitational visit:-
brainly.com/question/3009841
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Answer:
True
Explanation:
Its faster the way the machine does it