What component of an atom determines what element it is?

Light shines through a single slit whose width is 5.6 × 10-4 m. A diffraction pattern is formed on a flat screen located 4.0 m a

Mrac [35]

Answer:

462 nm

Explanation:

Given: width of the slit, d = 5.6 × 10⁻⁴ m

Distance of the screen, D = 4.0 m

Fringe width, β = 3.3 mm = 3.3 × 10⁻³ m

First dark fringe means n =1

Wavelength of the light, λ = ?

$\beta = \frac{\lambda D}{d}\\ \Rightarrow \lambda = \frac{d \beta}{D} =\frac{5.6\times 10^{-4} \times 3.3 \times 10^{-3}}{4.0} = 4.62 \times 10^{-7}m = 462 nm$

5 0

3 years ago

Select the best statement

s2008m [1.1K]

The correct answer is B. hopes this help

5 0

4 years ago

PLEASE HELP ASAP!!

Gwar [14]

The third one.

The nucleus of an atom is made up of protons and neutrons. Protons and neutrons have the same relative mass (rounded to 1). Electrons have an extremely small mass.

Therefore, the particles in the nucleus are more massive than those in the electron cloud.

4 0

2 years ago

If you are over-driving your headlights and you see an object ahead, you will_____. be given the right-of-way from other vehicle

SashulF [63]

Answer: not be able to stop in time to miss the object

Explanation:

The phrase "Over-driving your headlights" means that a person is driving at such a speed that the vehicle's stopping distance is greater than the maximum viewable distance with the headlights on.

When this occurs, it will be impossible for the vehicle to stop moving in time to avoid an object viewed by the driver in the range of his headlights.

This is a dangerous driving practice and can be avoided by driving at reduced speeds.

5 0

4 years ago

Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different direc

larisa [96]

For the answer to the question above,
Ricardo goes a distance (magnitude) of 27, in a direction of 60 degrees W of N
Jane goes a magnitude of 16 in a direction 30 degrees S of W 

How I would solve this is to imagine that the started at (0,0) 
And their walking represents vectors. 

Ricardo: 
X-coordinate = -27sin60 = 27sqrt(3)/2 = 23.383 
Y-coordinate = 27cos60 = 27/2 = 13.5 
So, after he walks, he is at point (-23.383, 13.5) 

Jane: 
X-coordinate = -16cos(30) = 16sqrt(3)/2 = 13.856 
Y-coordinate = -16sin(30) = 16/2 = 8 
So, after she walks, she is at point (-13.856, -8) 

So, you have 2 points. 
Use the distance formula to find their distance apart 
Sqrt((-23.383+13.856)^2+(13.5+8)^2) = 23.516m 

To find the direction, simply find the slope of the two points, and take the arc-tangent. 
The slope = -9.527/21.5 = -0.443 
Take the tan^-1 of this, which is -23.899 degrees. 
This basically translates to, Ricardo must walk 23.899 degrees E of S 

They will be 23.518 m apart 
Ricardo must walk 23.899 degrees East of South to get to Jane

5 0

3 years ago

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