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jenyasd209 [6]
3 years ago
12

Red light from three separate sources passes through a diffraction grating with 6.60×105 slits/m. The wavelengths of the three l

ines are 6.56 ×10−7m (hydrogen), 6.50 ×10−7m (neon), and 6.97 ×10−7m (argon). Part A Calculate the angle for the first-order diffraction line of first source (hydrogen). Express your answer using three significant figures.
Physics
1 answer:
riadik2000 [5.3K]3 years ago
3 0

Answer:· Visible light passes through a diffraction grating that has 900 slits per centimeter, and the interference pattern is observed on a screen that is 2.74 m from the grating. In the first-order spectrum, maxima for two different wavelengths are separated on the screen by 3.16 m. What is the difference between these wavelengths? . I know to apply the equation din(theta) = m*wavelength but I'm not sure how to find all the missing variables or to get the difference in wavelengths

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A driver in a car speeding to the right at 24m/s suddenly hits the brakes and goes into a skid, finally coming to rest. The coef
irina [24]

Answer:

42 m

Explanation:

v_{o} = initial velocity of the car = 24 m/s

v_{f} = final velocity of the car = 0 m/s

μ = coefficient of kinetic friction = 0.7

g = acceleration due to gravity = 9.8 m/s²

a = acceleration due to kinetic frictional force  = - μg = - (0.7)(9.8) = - 6.86 m/s²

d = distance through which the car skids

Using the kinematics equation

v_{f}^{2} = v_{o}^{2} + 2 a d

Inserting the values

0^{2} = 24^{2} + 2 (- 6.86) d

d = 42 m

8 0
3 years ago
Determine the value of n so that the vectors A and B are perpendicular: Ā = î + 5j + nk and B = 2î - j + k
Tanya [424]

If \vec A and \vec B are perpendicular, then their dot product is zero. This means

\vec A \cdot \vec B = (\vec\imath + 5\,\vec\jmath + n\,\vec k) \cdot (2\,\vec\imath - \vec\jmath + \vec k) = 2 - 5 + n = 0

Solving for n is trivial; it follows that n = 3.

6 0
2 years ago
A billiard ball is moving in the x-direction at 30.0 cm/s and strikes another billiard ball moving in the y-direction at 40.0 cm
ipn [44]

To solve this problem it is necessary to apply the trigonometric ratios of the given velocity components.

If we make a graph of the velocity vectors in their respective velocities according to the given description we will have something similar to the attached graph.

The angle could be obtained from the components of the opposite leg and the adjacent leg so that

tan\theta = \frac{x}{y}

\theta = tan^{-1}(\frac{x}{y})

The opposite leg value (y) is 40cm / s and the adjacent leg (x) is 30cm / s

\theta = tan^{-1}(\frac{30}{40})

\theta = 36.87\°

Therefore the final direction that does the first ball is 36.87°

6 0
3 years ago
Please answer and show work:
Vinvika [58]
The answer is c
Distance/speed=time
Therefore 4000/500=8
6 0
3 years ago
Which best describe the kinetic energy of the particles in solids, liquids, and gases? Check all that apply.
Mashcka [7]

It should be answer 1

4 0
3 years ago
Read 2 more answers
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