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tino4ka555 [31]
3 years ago
8

An electron with a kinetic energy of 3.90 ev collides with a sodium atom.

Physics
1 answer:
Naddika [18.5K]3 years ago
8 0
The wavelength  transition line is 
Δ = hc/Δ∈
=1240 e V. nm/3.75e V - 0,0ev
=330 .nm
Another wavelength transisiton is 
Δ = hc/Δ∈
1240e V. nm/3.19e V -2.104e V
1140 .nm
Some other wavelength transition are;
590, 816, 2180, 8860.

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Does crystallization break down rocks at earths surface to form sediment
Nana76 [90]

Answer:

No

Explanation:

Crystizaltion of magma turns into indeginous rocks which then turns into sediment after weathering and erosion.

3 0
2 years ago
Ava visited grand canyon. She was very impressed by the rock formations and decided to sketch them. What type of rock did Ava se
soldier1979 [14.2K]
She saw sedimentary rock
6 0
3 years ago
V = d/t please help with my physics question!
Assoli18 [71]

Answer:

313, 0.60 s

Explanation:

wavelength

= speed/frequency

= 340/520

= 0.6538 m

Number of wavelengths

= 205/0.6538

= <u>313</u> (whole number)

Time delay

= distance/speed

= 204/340

= <u>0.60 s</u>

7 0
3 years ago
It's always a good idea to wear a seatbelt in a car, because if the car comes to a sudden stop, you will not _________.
IgorLugansk [536]

It's always a good idea to wear a seatbelt in a car, because if the car comes to a sudden stop, you will not move forward very much since the seatbelt is holding you back. The answer is letter D. 

4 0
3 years ago
Which type of force does a window washer want acting on him when trying to keep the same position? Question 5 options: large sma
taurus [48]

The balanced force is required to be acting on the window washer to keep it in the same position.

<h3>What is Force?</h3>

The external effort causing the change in the state of motion of any object is known as force.

Forces are generally of two types namely balanced force and unbalanced force.

When an object is applied with more than one force, such that net force on the object is zero and due to this the state of motion of object remains unaffected, then such type of force is called balanced force.

Similarly, the forces on the object having some net magnitude and causing some motion to the object are known as unbalanced forces.

So as per the given problem, for keeping the window washer in the same position, it is required to apply with a balanced force.

Thus, we can conclude that balanced force is required to be acting on the window washer to keep it in the same position.

Learn more about the types of forces here:

brainly.com/question/13774406

8 0
2 years ago
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