2 years ago

The discovery and characterization of cathode rays was important in the development of the atomic theory because

Physics

1 answer:

Viefleur [7K]2 years ago

3 0

Answer:

All matter contained electrons

Explanation:

The discovery and characterization of cathode ray suggested that it was a subatomic particle and cathode ray ( electron) was the first discovered. It immensely became the strong explanatory tool for chemical bond. This can be attributed to the the ease with which electron move from one atom to the other.

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Two parallel plates are a distance apart with a potential difference between them. a point charge moves from the negatively char

Ghella [55]

Answer:

We can relate the kinetic energy of the particle to the potential difference between the plates by following equations:

Work energy theorem:

$W_{total} = \Delta K = K_2 - K_1 = w - 0$

$W = Fx\\F = W/d = w/d$

$F = Eq \\E = F/q = w/(dq)$

$V = Ed = \frac{w}{dq} d = w/q$

So,

$w = Vq$

If the distance is doubled and the potential difference is halved, then

$w = qV/2$

Explanation:

As can be seen from the relationship between kinetic energy and the potential difference, the distance between the plates has no effect on the relation between kinetic energy and the potential difference. Since the charge of the second particle is equal to that of the first one, the new kinetic energy would be half of the first kinetic energy.

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2 years ago

The steel plate is 0.3 m thick and has a density of 7850 kg>m3 . determine the location of its center of mass. also find the

cestrela7 [59]

answer with full explanation is attached below