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3 years ago

What is magnetic force?i

Physics

2 answers:

Fiesta28 [93]3 years ago

6 0

Answer:

Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. The magnetic force between two moving charges may be described as the effect exerted upon either charge by a magnetic field created by the other.

Explanation:

Hope this helps you. Please mark as brainliest. It helps a lot. :)

Vsevolod [243]3 years ago

3 0

Answer:

The force by which a substance (magnet) attracts a body(metals) towards it is called magnetic force

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An insulating sphere is 8.00 cm in diameter and carries a 6.50 ÂµC charge uniformly distributed throughout its interior volume.

Kobotan [32]

Explanation:

(a) Formula to calculate the density is as follows.

$\rho = \frac{Q}{\frac{4}{3}\pi a^{3}}$

= $\frac{6.50 \times 10^{-6}}{\frac{4}{3} \times 3.14 \times (0.04)^{3}}$

= $2.42 \times 10^{-2} C/m^{3}$

Now, calculate the charge as follows.

$q_{in} = \rho(\frac{4}{3} \pi r^{3})$

= $2.42 \times 10^{-2} C/m^{3} \times 4.1762 \times (0.01)^{3}$

= $10.106 \times 10^{-8}$ C

or, = 101.06 nC

(b) For r = 6.50 cm, the value of charge will be calculated as follows.

$q_{in} = \frac{Q}{\frac{4}{3}\pi a^{3}}$

= $\frac{6.50 \times 10^{-6}}{\frac{4}{3} \times 3.14 \times (0.065)^{3}}$

= 7.454 $\mu C$

7 0

3 years ago

An object is moving with constant non-zero velocity. Which of thw following statements about it must be true

hram777 [196]

Answer:

The net force on the object is zero.

Explanation:

An object is moving with constant non-zero velocity. If velocity is constant, it means that the change in velocity is equal to 0. As a result, acceleration of the object is equal to 0. Net force is the product of mass and acceleration. Hence, the correct option is (d) "The net force on the object is zero".

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3 years ago

Match the traits to the ogransims

k0ka [10]

Need more than that to answer this question

4 0

3 years ago

What statement is true according to newton’s first law of motion?

Airida [17]

Answer:

c. in the absence of an unbalanced force, an object at rest will stay at rest and an object in motion will stay in motion.

Explanation:

First law: things keep doing what they are doing, unless force is applied.

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3 years ago

A girl standing upright exerts a pressure of 15000 N/m2 on the floor. Given that the total area of contact of shoes and the floo

gizmo_the_mogwai [7]

Answer:

30,000N/m²

Explanation:

Given parameters:

Pressure on two legs = 15000N/m²

Total surface area of contact = 0.02m²

Surface area on one leg = $\frac{0.02}{2}$ = 0.01m²

Unknown:

Pressure exerted if she stood on one leg = ?

Solution:

Pressure is the force per unit area on a body.

Pressure = $\frac{force}{area}$

The force she is exerting is due to the weight her both. Standing on both feet and on a single feet is based on the same source of force;

Force = pressure x area

Force = 15000 x 0.02 = 300N

So;

Pressure from one leg = $\frac{300}{0.01}$ = 30,000N/m²

6 0

3 years ago

What is magnetic force?i​

What is magnetic force?i