1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Leto [7]
3 years ago
11

i do not know why but the answer is 684 please let me know why. A light with a second-order dark band forms a diffraction angle

of 20.0°. The diffraction grating has 200.0 lines per mm.The wavelength of the light, to the nearest whole number, is  nm.
Physics
1 answer:
pashok25 [27]3 years ago
5 0
I don't get what your asking I'm sorry the question isn't clear
You might be interested in
Which of the following does NOT describe the conversion of potential to kinetic energy?
ivann1987 [24]
I believe it would be A. (:
8 0
3 years ago
Atoms in a molecule are bonded together by sharing gaining or losing_
leva [86]
Atoms and I molecule are bonded together by sharing gaining or losing electrons
5 0
3 years ago
If an object weighs 300 N on earth, what is it’s mass on the moon?
inna [77]

Answer:

The mass of the object on the Moon (and anywhere else) is about 30.61kg. Please see more detail below.

Explanation:

Weight is the gravitational force exerted on the object and is a function of mass and gravitational acceleration:

(weight) = (mass) x (gravitational acceleration)

We are to find the mass, knowing the weight on Earth to be 300N:

(mass) = (weight on Earth) / (gravitational acceleration on Earth) = 300N / 9.8 m/s^2 = 30.61 kg

The mass of the object is 30.61kg.

The mass of the object is independent of gravity. Therefore the answer to the question "What is its mass on the Moon" is 30.61kg.

If the question were what is its weight on the Moon, the answer would be

(weight on Moon) = (mass) x (grav.accel. on Moon) = 30.61kg x 1.62 m/s^2 = 49.59N

which is about 1/6 of the object's weight on the Earth.

4 0
3 years ago
Which of the following best explains why clear-cutting forests is more destructive than selectively cutting down trees in forest
garri49 [273]
<span>The answer is a. cutting trees reduce fertility and eliminates animal habitats. Plant material is essential in maintaing soil fertility. Leaves and branches decay to form humus; removing trees decreases the organic content. Trees are home to many animal species, including birds, insects and amphibians. Some trees are even support or home to other plants. Examples include epiphytes in the rainforest ecosystem. Clear cutting forests disrupts whole communities and ecosystems. </span>
6 0
4 years ago
Read 2 more answers
Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different direc
Lapatulllka [165]

Answer:

a)     d = 30.79 m , b) θ = -22.4° ,   θ = 22.4 South of East

Explanation:

The easiest way to solve problems with vectors is to use their components, for this the East-West direction coincides with the x-axis and the North-South direction coincides with the y-axis

Let's use the index for / Ricardo and the index for Jane, let's break down the displacements

Richard

X axis

      x₁ = 26.0 sin (60)

      x₁ = -22.52 m

Y Axis  

     y₁ = 26.0 cos 60

     y₁ = 13 m / s

Jane

X axis

       x₂ = 16.0 cos (180 +30)

       x₂ = -13.85 m

Y Axis  

        y₂ = 16.0 sin (180 + 30)

        y₂ = - 8.0 m

Now we can use Pythagoras' theorem to find the distance between them

         d = √ [(x₂ -x₁)² + (y₂ -y₁)²]

         d = √ [(-13.85 + 22.52)² + (-8 -13)²]

         d = 30.79 m

Let's use trigonometry to enter the address

         tan θ = Δy / Δx

         θ = tan⁻¹ Δy / Δx

         θ = tan⁻¹ (-13.85 + 22.52) / (-8 - 13)

         θ = tan⁻¹ (-8.67 / 21)

         θ = -22.4°

The negative sign indicates that the angle is measured from the axis clockwise.

In the form of cardinal s point is

     θ = 22.4 South of East

4 0
4 years ago
Other questions:
  • How many wavelenghts of a wave pass a point if the frequency of the wave is 4 hertz?
    9·1 answer
  • A 0.06-kg ball is moving at 5.0 m/s. how large is the kinetic energy from this motion?
    7·1 answer
  • Can an element be a molecule
    7·2 answers
  • Sorin hits a cricket ball straight up into the air. After 1.5s the ball is falling straight down with a speed of 6.5m We want to
    9·1 answer
  • How is energy related to the change of state represented by the model?
    15·1 answer
  • How many nanoseconds does it take light to travel 1.00 ft in vacuum? (This result is a useful quantity to remember.)
    9·1 answer
  • A charged particle is observed traveling in a circular path of radius R in a uniform magnetic field. If the particle were travel
    5·1 answer
  • Two students hold a rope between them. They wiggle it in a way so that the crest of one wave reaches the crest of the other, inc
    8·1 answer
  • The speed of sound is about 343 m/s . The wavelengths humans can hear range from .0017 m/cycle to 17m/cycle . What is the range
    5·1 answer
  • The answer please? I have exam tomo
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!