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3 years ago

What is the maximum kinetic energy k0 of the photoelectrons when light of wavelength 350 nm falls on the same surface?

1 answer:

6 0

When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is 1.10 eV.

What is the maximum kinetic energy Ko of the photoelectrons when light of wavelength 350 nm falls on the same surface?

Use h= 6.63×10-34 J * s for Planck's constant and c= 3.00×10^8 m/s for the speed of light and express your answer in electron volts.

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3 years ago

What phase difference between two otherwise identical harmonic waves, moving in the same direction along a stretched string, wil

lora16 [44]

Answer:

$\theta=145$

Explanation:

The amplitude of he combined wave is:

$B=2Acos(\theta/2)\\$

A, is the amplitude from the identical harmonic waves

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θ, is the phase, between the waves

The amplitude of the combined wave must be 0.6A:

$0.6A=2Acos(\theta/2)\\ cos(\theta/2)=0.3\\\theta/2=72.5\\\theta=145$

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3 years ago

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Gnesinka [82]

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3 years ago

Suppose the coefficient of static friction between a quarter and the back wall of a rocket car is 0.330. At what minimum rate wo

Helga [31]

Answer: $3.23 m/s^2$

Explanation:

Given

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$a_{min}=\mu_s \cdot g=0.330\times 9.8=3.23 m/s^2$

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3 years ago

Fernanda is working on a physics project. she is experimenting by rolling a marble down a ramp and then seeing how far it rolls

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As a result of the marble's size, the substance it is constructed of, and the angle at which it is placed onto the ground, the distance it rolls varies.
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<h3>What is Independent variable?</h3>

There are independent and dependent variables in every experiment.
A variable is considered independent if its change is not influenced by the change in another variable or factor.

<h3>What is Dependent variable?</h3>

In any experiment, the dependent variable must be measured or determined, and it must change as the independent variable does.

Learn more about independent and dependent variable here:

brainly.com/question/1479694

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2 years ago