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lakkis [162]
3 years ago
9

Why did scientists using classical, Newtonian physics have difficulty explaining the photoelectric effect?

Physics
2 answers:
trapecia [35]3 years ago
4 0
I think its B because classical physics describes light as waves
Ganezh [65]3 years ago
3 0
Classical physics considered light to behave as a wave in all environments; it had a set amplitude, frequency etc. The problem was that this meant that there was a continuous variation in its properties, hence if the amplitude of the light was incresed by a bit, a phenomenon like the phhotoelectric one would become only marginally more apparent. However, in this case, there is a cutoff point which means that the only-wave theory had to be wrong.
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Which of the following are not vector directions?
Svetradugi [14.3K]

Answer:

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6 0
3 years ago
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A particle (charge = +0.8 mC) moving in a region where only electric forces act on it has a kinetic energy of 6.7 J at point A.
Maksim231197 [3]

Answer:

The kinetic energy of the particle as it moves through point B is 7.9 J.

Explanation:

The kinetic energy of the particle is:

\Delta K = \Delta E_{p} = q\Delta V

<u>Where</u>:

K: is the kinetic energy

E_{p}: is the potential energy

q: is the particle's charge = 0.8 mC

ΔV: is the electric potential = 1.5 kV                                    

\Delta K = q \Delta V= 0.8 \cdot 10^{-3} C*1.5 \cdot 10^{3} V = 1.2 J

Now, the kinetic energy of the particle as it moves through point B is:

\Delta K = K_{f} - K_{i}

K_{f} = \Delta K + K_{i} = 1.2 J + 6.7 J = 7.9 J

Therefore, the kinetic energy of the particle as it moves through point B is 7.9 J.

I hope it helps you!      

8 0
3 years ago
50. The potential energy of a spring is 0.3 J when it is compressed 0.04 m to the left of its equilibrium
lozanna [386]

Answer:

Your answer should be A. 0.25 J and moving to the right

Explanation:

6 0
2 years ago
I need help someone help me
GaryK [48]

what do you need , i mean your help , let me see if i can help

5 0
3 years ago
How do I find the approximate velocity of "the object", on the graph at 5 seconds?
MakcuM [25]

First, foremost, and most critically, you must look at the graph, and critically
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Without that ability ... since the graph is nowhere to be found ... I am hardly
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7 0
3 years ago
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