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ruslelena [56]
3 years ago
10

Which image represents the force on a positively charged particle caused by an approaching magnet?

Physics
1 answer:
Amanda [17]3 years ago
4 0

Answer:

Image B represents the force on a positively charged particle caused by an approaching magnet.

Explanation:

The most fundamental law of magnetism is that like shafts repulse each other and dissimilar to posts pull in one another; this can without much of a stretch be seen by endeavoring to put like posts of two magnets together. Further attractive impacts additionally exist. On the off chance that a bar magnet is cut into two pieces, the pieces become singular magnets with inverse shafts. Also, pounding, warming or winding of the magnets can demagnetize them, on the grounds that such dealing with separates the direct game plan of the particles. A last law of magnetism alludes to maintenance; a long bar magnet will hold its magnetism longer than a short bar magnet. The domain theory of magnetism expresses that every single enormous magnet involve littler attractive districts, or domains. The attractive character of domains originates from the nearness of significantly littler units, called dipoles. Iotas are masterminded in such a manner in many materials that the attractive direction of one electron counteracts the direction of another; in any case, ferromagnetic substances, for example, iron are unique. The nuclear cosmetics of these substances is with the end goal that littler gatherings of particles unite as one into zones called domains; in these, all the electrons have the equivalent attractive direction.

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An antelope moving with constant acceleration of 2m/s2 covers crosses a point where its velocity is 5m/s. After 6s how much dist
LuckyWell [14K]

The distance covered is 66 m and the velocity would be 17 m/s

<h3>What are the three equations of motion?</h3>

There are three equations of motion given by  Newton

The first equation is given as follows

v = u + at

the second equation is given as follows

S = ut + 1/2×a×t²

the third equation is given as follows

v² - u² = 2×a×s

As given in the problem, An antelope moving with a constant acceleration of 2m/s2 covers crosses a point where its velocity is 5m/s

distance  =? meters

initial velocity(u) = 5  m/s

acceleration(a) = 2 m/s²

By using the second equation of motion given by newton

S = ut + 1/2at²

u= 5  m/s , a= 2 m/s² and t =6 seconds

S = 5*6 +0.5*2*6²

  =66 m

to calculate the velocity after 6 seconds by using the first question of the motion

v = u + at

v = 5 + 2*6

v = 17 m/s

Thus, the distance covered is 66 m and the velocity would be 17 m/s

Learn more about equations of motion from here

brainly.com/question/5955789

#SPJ1

6 0
1 year ago
A tennis ball is released from a height of 4.0 m above the floor. After its third bounce off the floor, it reaches a height of 1
diamong [38]

Answer:

The percentage of its mechanical energy does the ball lose with each bounce is 23 %

Explanation:

Given data,

The tennis ball is released from the height, h = 4 m

After the third bounce it reaches height, h' = 183 cm

                                                                       = 1.83 m

The total mechanical energy of the ball is equal to its maximum P.E

                                      E = mgh

                                          = 4 mg

At height h', the P.E becomes

                                      E' = mgh'

                                           = 1.83 mg

The percentage of change in energy the ball retains to its original energy,

                                 \Delta E\%=\frac{1.83mg}{4mg}\times100\%

                                  ΔE % = 45 %

The ball retains only the 45% of its original energy after 3 bounces.

Therefore, the energy retains in each bounce is

                                   ∛ (0.45) = 0.77

The ball retains only the 77% of its original energy.

The energy lost to the floor is,

                                E = 100 - 77

                                   = 23 %

Hence, the percentage of its mechanical energy does the ball lose with each bounce is 23 %      

5 0
4 years ago
4. Which statement summarizes the excerpt? *
Aleks [24]
A hope that can help
6 0
3 years ago
Does an odometer measure distance or displacement
SashulF [63]
Odometer measures distance
3 0
4 years ago
If the force of gravity increases, which measurement will change and how?
alekssr [168]
In physics we refer to how heavy the object is as the mass.

Fg = mass x acceleration due to gravity

Force is directly proportional to mass, thus if force of gravity increases mass also increases.
5 0
3 years ago
Read 2 more answers
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