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Vera_Pavlovna [14]
3 years ago
15

Describe the difference between contact forces and field forces.

Physics
1 answer:
Salsk061 [2.6K]3 years ago
8 0
Contact forces has to be touching for it to be an actual force. A field force does not have to be touching but it does have to be acting on particles at different positions in a space.
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It would be impossible to build a microscope that could use visible light to see the molecular structure of a crystal because. I
Serhud [2]

Answer:

the correct one is: a diffraction limits the resolving power to approximately the size of the wavelength of the light used

Explanation:

To be able to solve two structures with a light source, the Rayleigh criterion must be met that stable the two structures are solved when the first minimum of diffraction at one point is in the code of the first maximum of the other point

Using this criterion we can find an expression for the first minimization of the diffraction spectrum m = 1

     sin θ tea = λ / a

now the structure of the comatose has a separation of around 1 nm and the wavelength of visible light ranges from 400 to 700 nm, when substituting we find

           sin θ = 400/1 10

           sin θ  = 400

           sin θ  = 700/1

           sin θ  = 700

These values ​​are neither impossible since the sin function is bounded between -1 to 1, so we cannot see the diffraction

When reviewing the different statements, the correct one is: a diffraction limits the resolving power to approximately the size of the wavelength of the light used:

6 0
2 years ago
The density of balsa wood is 0.170 g/cm3.  What is the mass if the volume is 12.0 mL?
Harlamova29_29 [7]

Answer:

<h3>The answer is 2.04 g</h3>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

density = 0.17 g/cm³

1 mL = 1 cm³

12 mL = 12 cm³

So we have

mass = 0.17 × 12

We have the final answer as

<h3>2.04 g</h3>

Hope this helps you

8 0
3 years ago
A balance is best used to measure a sample’s
blondinia [14]
The answer is “ Mass “
7 0
3 years ago
Could anyone help me with this?
tatiyna

Answer:

Answer is option C..

Mark as brainlist

3 0
2 years ago
A light bulb is connected to a 2V supply and experiences a current of 6.4A. What is the power rating of the bulb?
Olenka [21]

Answer:

12.8 Watts

Explanation:

P = VI

P = (2 V) (6.4 A)

P = 12.8 W

8 0
3 years ago
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