A device used to measure the atmospheric pressure is the barometer. true false

Physics

1 answer:

Angelina_Jolie [31]2 years ago

3 0

True, I just learned this a week ago. Is this for Chemistry?

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An electron emitted from a filament is travelling at 1.5 x 105 m/s when it enters an acceleration of an electron gun in a televi

Crank

Answer:

The acceleration of the electron is 1.457 x 10¹⁵ m/s².

Explanation:

Given;

initial velocity of the emitted electron, u = 1.5 x 10⁵ m/s

distance traveled by the electron, d = 0.01 m

final velocity of the electron, v = 5.4 x 10⁶ m/s

The acceleration of the electron is calculated as;

v² = u² + 2ad

(5.4 x 10⁶)² = (1.5 x 10⁵)² + (2 x 0.01)a

(2 x 0.01)a = (5.4 x 10⁶)² - (1.5 x 10⁵)²

(2 x 0.01)a = 2.91375 x 10¹³

$a = \frac{2.91375 \ \times \ 10^{13}}{2 \ \times \ 0.01} \\\\a = 1.457 \ \times \ 10^{15} \ m/s^2$

Therefore, the acceleration of the electron is 1.457 x 10¹⁵ m/s².

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3 years ago

What is an incandescent light bulb, how does it work and how much does it cost?

siniylev [52]

Explanation:

An incandescent bulb works by heating a filament in the bulb at high temperatures such that it produces it glows and produces visible light. The filament, usually a thin tungsten metal, heats up by imposing a high resistance to electric current. High resistance builds up heat in the filament causing it to glow. The bulb is filled with inert gases- like neon or halogen- to prevent oxidation of the filament.

The price of an incandescent bulb is approximately $21.

Learn More:

For more on incandescent bulbs check out;

brainly.com/question/9584045

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3 years ago

A 140

Doss [256]

There is not enough information given tl be able to solve this problem

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