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aev [14]
2 years ago
9

A scientist shines light from a source onto a piece of metal, and no electrons are released by the metal. Increasing the intensi

ty of the light source does not change this result. What is this effect, and how do scientists explain it?
This is the Doppler effect, and it is best explained by the wave model of light.,

This is the Doppler effect, and it is best explained by the particle model of light.


This is the photoelectric effect, and it is best explained by the wave model of light.,

This is the photoelectric effect, and it is best explained by the particle model of light.
Physics
1 answer:
Nezavi [6.7K]2 years ago
7 0

This is the photoelectric effect, and it is best explained by the particle model of light.

<h3>What is the photoelectric effect?</h3>

The photoelectric effect refers to the emission of negatively charged particles and electromagnetic radiation that hits an object.

The photoelectric effect shows how electrons can be released from a given object when this material is absorbing electromagnetic radiation.

The photoelectric effect is a fundamental piece of evidence for understanding the nature of light particles.

Learn more about the photoelectric effect here:

brainly.com/question/1359033

You might be interested in
The force that generates wind is ________. centrifugal force pressure gradient force coriolis force gravity force
Veseljchak [2.6K]
~Hello There! ^_^

Your question: The force that generates wind is ___________.

Your answer: The force that generates wind is pressure gradient force.

The answer to fill up the blank is pressure gradient force.

Hope this helps!



8 0
3 years ago
Read 2 more answers
A car going 50 mph accelerates to pass a truck. Five seconds later the car is
Alex

The vehicle accelerates at 2.648 m/s².

We have:

Initial velocity, u = 50 miles per hour = 22.352 m/s

final velocity, v = 80 miles per hour = 35.762 m/s

Time, t = 5 seconds

The time in hours is:

t = 5 seconds

Now, the acceleration of the car can be calculated using the formula:

v = u + at

35.762 = 22.352 + a(5)

a(5) = 30

a = 2.682 m/s²

From the calculations above, the acceleration of the car is 2.682 m/s².

Ler more about acceleration here:

brainly.com/question/605631

#SPJ9

3 0
2 years ago
A child is riding a merry-go-round, which has an instantaneous angular speed of 1.25 rad/s and an angular acceleration of 0.745
Elena L [17]

w = instantaneous angular speed = 1.25 rad/s

r = radius = 4.65 m

α = angular acceleration = 0.745 rad/s²

centripetal acceleration is given as

a_{c} = rw²

a_{c} = (4.65 ) (1.25)² = 7.27 m/s²

tangential acceleration is given as

a_{t} = rα

a_{t} =4.65 x 0.745 = 3.46 m/s²

angle is given as

\theta = tan^{-1}(\frac{a_{c}}{a_{t}})

\theta = tan^{-1}(\frac{7.27}{3.46})

\theta = 64.5 deg

5 0
4 years ago
What is the answer?​
scoundrel [369]

"Choice-C" is the answer.

7 0
3 years ago
A ball is thrown upward from a height of 432 feet above the​ ground, with an initial velocity of 96 feet per second. From physic
e-lub [12.9K]

Answer;

A)S(t)=96t-16t² +432

B)it will take 9 seconds for the ball to reach the ground.

C)864feet

Explanation:

We were given an initial height of 432 feet.

And v(t)= 96-32t

A) we are to Find​ s(t), the function giving the height of the ball at time t

The position, or heigth, is the integrative of the velocity. So

S(t)= ∫(96-32)dt

S(t)=96t-16t² +K

S(t)=96t-16t² +432

In which the constant of integration K is the initial height, so K= 432

b) we need to know how long will the ball take to reach the​ ground

This is t when S(t)= 0

S(t)=96t-16t² +432

-16t² +96t +432=0

This is quadratic equation, if you solve using factorization method we have

t= -3 or t= 9

Therefore, , t is the instant of time and it must be a positive value.

So it will take 9 seconds for the ball to reach the ground.

C)V=s/t

Velocity= distance/ time

=96=s/9sec

S=96×9

=864feet

8 0
3 years ago
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