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Ksju [112]
1 year ago
13

OSHA is the:

Physics
1 answer:
KATRIN_1 [288]1 year ago
8 0
C Occupational Safety and Health Administration
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You can determine the index of refraction of a substance by determining its critical angle. (a) What is the index of refraction
gregori [183]

Answer:

a )1.851

b ) 32.68°

Explanation:

The relation between critical angle and index of refraction is as follows

Sin C = 1 / μ

C is critical angle and μ is refractive index.

Given C = 47.3

Sin 47.3 = 1 / μ

0.735 = 1 / μ

μ = 1 / .735

= 1.36

This is with respect to ethanol .

1.36 = refractive index of material /  refractive index of ethanol

refractive index of material = 1.36 x refractive index of ethanol

= 1.36 x 1.361 = 1.851

If critical angle for this substance be A

Sin A = 1 / 1.851 = .54

A = 32.68° .

3 0
3 years ago
How do I identify the symbols used for positive and negative charge
horrorfan [7]

Protons are positive +

Neutrons are neutral and have no charge

Electrons are negative -

3 0
3 years ago
He discovered that the orbits of planets are ellipses.
bezimeni [28]

Answer:

Kepler

Explanation:

Kepler discovered that the orbits of planets are ellipses.

6 0
3 years ago
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Why can't humans breathe in space?​
11111nata11111 [884]

Answer:

There is no atmspheric pressure

4 0
2 years ago
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A vertical spring has a mass hanging from it, which is displaced from the equilibrium position and begins to oscillate. At what
Orlov [11]

Answer:

the object has least potential energy at mean position of the SHM

Explanation:

If a block is connected with a spring and there is no resistive force on the system

In this case the total energy of the system is always conserved and it will change from one form to another form

So here we will say that

Kinetic energy + Potential energy = Total Mechanical energy

As we can say that total energy is conserved so here we have least potential energy when the system has maximum kinetic energy

So here we also know that at mean position of the SHM the system has maximum speed and hence maximum kinetic energy.

So the object has least potential energy at mean position of the SHM

5 0
3 years ago
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