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3 years ago

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

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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

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In what situations do newtons laws of motion not apply￼

In what situations do newtons laws of motion not apply