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Shkiper50 [21]
3 years ago
9

Consider the following statement:

Physics
1 answer:
vovangra [49]3 years ago
3 0

Answer:

The statement "The magnetic field of a magnet comes out of the north pole and goes into the south pole" is imprecise

Explanation:

This is because the zero divergence equation (∇ · B = 0 ) is valid for any magnetic field, even if it is time dependent rather than static. Physically, it means that there are no magnetic charges otherwise we would have ∇ · B ∝ ρmag instead of ∇ · B = 0. Consequently, the magnetic field lines never begin or end anywhere in space; instead they form closed loops or run from infinity to infinity.

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A satellite of 2,140 kg travels around the earth, of 5.97 - 1024
77julia77 [94]

Answer:

8,961

Explanation:

3 0
3 years ago
A hockey ball accelerates from 0.m/s to 25m/s in 0.05 seconds what is the acceleration of the ball ?
S_A_V [24]

Answer:

500

Explanation:

25/0.05 .

I think this ?

3 0
3 years ago
if the accuracy in measuring the position of a particle increases, what happens to the accuracy in measuring its velocity?
erastova [34]
The answer to this question should be: The accuracy in measuring its velocity decreases

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7 0
3 years ago
Now imagine a person dragging a 50 kg box along the ground with a rope, as
ANTONII [103]

Answer:

The coefficient of static friction between the box and floor is, μ = 0.061

Explanation:

Given data,

The mass of the box, m = 50 kg

The force exerted by the person, F = 50 N

The time period of motion, t = 10 s

The frictional force acting on the box, f = 30 N

The normal force on the box, η = mg

                                                     = 50 x 9.8

                                                     = 490 N

The coefficient of friction,

                            μ = f/ η

                               = 30 / 490

                               = 0.061

Hence, the coefficient of static friction between the box and floor is, μ = 0.061

7 0
3 years ago
What two forms of energy are associated with mechanical energy?
Katen [24]
Potential energy and kinetic energy.
Hope this helps
7 0
3 years ago
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