4 years ago

The first scientist to show that atoms emit any negative particles was

1 answer:

4 0

The first scientist to show that atoms emit any negative particles was : J.J Thomson

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algol13

Answer:

$h = 0.0362\,m$

Explanation:

Given the absence of non-conservative force, the motion of the coin is modelled after the Principle of Energy Conservation solely.

$U_{g,A} + K_{A} = U_{g,B} + K_{B}$

$U_{g,B} - U_{g,A} = K_{A} - K_{B}$

$m\cdot g \cdot h = \frac{1}{2}\cdot I \cdot \omega_{o}^{2}$

The moment of inertia of the coin is:

$I = \frac{1}{2}\cdot m \cdot r^{2}$

After some algebraic handling, an expression for the maximum vertical height is derived:

$m\cdot g \cdot h = \frac{1}{4}\cdot m \cdot r^{2}\cdot \omega_{o}^{2}$

$h = \frac{r^{2}\cdot \omega_{o}^{2}}{g}$

$h = \frac{(0.0108\,m)^{2}\cdot (55.2\,\frac{rad}{s} )^{2}}{9.807\,\frac{m}{s^{2}} }$

$h = 0.0362\,m$

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4 years ago

vladimir1956 [14]

A photon is absorbed

your question is incomplete, please consider revising it.

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4 years ago

lord [1]

I believe the answer is A. Light is scattered.

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3 years ago

ira [324]

Well gravity is 9.8m/s so i would assume 19.6m/2 is the velocity

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3 years ago

il63 [147K]

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4 years ago