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Mrrafil [7]
3 years ago
12

In what situations do newtons laws of motion not apply

Physics
1 answer:
Sindrei [870]3 years ago
6 0

Answer:

Newton's laws are not applicable in non-inertial frames.

Explanation:

These are frames that are under acceleration.

Newton's laws can be applied to these frames(though not common) by applying a special force called pseudo force that acts in the opposite direction of the acceleration.

Newton's laws terribly fail in explaining the quantum world.

Non-inertial frames it is!

Hope it helps!

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A beam of light traveling in air strikes a slab of transparent material. The incident beam makes an angle of 40° with the normal
Molodets [167]

Answer:

V = 2.05× 10⁸ m/s

Explanation:

We are given;

The angle of the incidence; i = 40°

Angle of refraction; (r) = 26°

For us to find the speed of light in the material, we'll use Snell's law

From shell's law, we know that;

n = sin i/sin r = speed of light in air/Speed of light in the medium

Now, speed of light in air = 3 × 10⁸ m/s

Lets speed of light in medium be V

Thus, plugging in the relevant values to obtain;

Sin 40°/sin 26° = 3×10⁸/V

Let's make V the subject;

V = 3 × 10⁸× sin 26°/sin 40°

V = 2.05× 10⁸ m/s

7 0
3 years ago
How many electrons are in the third energy level?<br><br> 2<br> 8<br> 18<br> 20
Blababa [14]

Answer:

B)8

Explanation:

In the first energy level you can have, at most, 2. Every energy level after that wants to have 8 electrons. Valence electrons I believe.

Hope this helps, have a nice day! (^-^)

6 0
3 years ago
Read 2 more answers
A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic fie
Scilla [17]

Answer:

Induced current, I = 0.5 A

Explanation:

It is given that,

number of turns, N = 20

Area of wire, A=50\ cm^2=0.005\ m^2

Initial magnetic field, B_i=2\ T

Final magnetic field, B_f=6\ T

Time taken, t = 2 s

Resistance of the coil, R = 0.4 ohms

We know that due to change in magnetic field and emf will be induced in the coil. Its formula is given by :

\epsilon=\dfrac{-d\phi}{dt}

Where

\phi=BA

\epsilon=\dfrac{-d(NBA)}{dt}

\epsilon=NA\dfrac{B_f-B_i}{t}

\epsilon=20\times 0.005\times \dfrac{6-2}{2}

\epsilon=0.2\ V

Let I is the induced current in the wire. It can be calculated using Ohm's law as :

\epsilon=I\times R

I=\dfrac{\epsilon}{R}

I=\dfrac{0.2}{0.4}

I = 0.5 A

So, the magnitude of the induced current in the coil is 0.5 A. Hence, this is the required solution.

5 0
3 years ago
the electric field midway between two equal but opposite point charges is 573 n/c , and the distance between the charges is 16.0
saveliy_v [14]

The electric potential  between the two charges is 91.68 V.

<h3>Electric potential between the two charges</h3>

The electric potential  between the two charges is calculated as follows;

V = Ed

where;

  • V is electric potential
  • E is electric field
  • d is the distance of the charge

Substitute the given parameters and solve for electric potential,

V = 573 N/c x 0.16 m

V = 91.68 V

Thus, the electric potential  between the two charges is 91.68 V.

Learn more about electric potential here: brainly.com/question/26978411

#SPJ4

4 0
1 year ago
The Sun is essential to life on earth. Which of the statements is not true about the Sun's importance to life on the earth?
MakcuM [25]
I think that the answer is B that the sun (DOES NOT) support  the processes of plate tectonics
3 0
4 years ago
Read 2 more answers
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