an input device is (a piece of computer hardware equipment) used to provide data and control signals to an information processing system such as acomputer or information appliance.

5 0

2 years ago

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In the carbon cycle, carbon is found in _______. a. the atmosphere b. the soil c. living organisms d. all of the above

VMariaS [17]

Answer;

All the above

Explanation;

The element carbon is the most important chemical constituent of many organic matter, ranging from fossil fuels to complex molecules such as DNA and RNA, that control genetic reproduction in organisms.

This element is found stored in major sinks found on the earth;

as organic molecules in living and dead organisms found in the biosphere;
as the gas carbon dioxide in the atmosphere;
as organic matter in soils;
in the lithosphere as fossil fuels and sedimentary rock deposits in the oceans as dissolved atmospheric carbon dioxide and
as calcium carbonate shells in marine organisms.

7 0

3 years ago

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A proton and an electron are both accelerated to the same final speed. If λp s the de Broglie wavelength of the proton and e is

meriva

Answer:

Explanation:

The relation between the de Broglie wavelength and the momentum of the particle is given by

$\lambda =\frac{h}{m\times v}$

where, m is the mas of the particle and v be the velocity of the particle and h be the Plank's constant.

So, the de broglie wavelength of proton is given by

$\lambda _{p}=\frac{h}{m_{p}\times v}$ .... (1)

The de broglie wavelength of electron is given by

$\lambda _{e}=\frac{h}{m_{e}\times v}$ .... (2)

Divide equation (2) by equation (1), we get

$\frac{\lambda _{e}}{\lambda _{p}}=\frac{m_{p}}{m_{e}}$

As the mass of proton is much more than the mass of electron, so the de broglie wavelength of electron is more than the de Broglie wavelength of proton.

5 0

3 years ago

A car traveling at 60 mph has how much more energy than a car going at 15 mph?

Liono4ka [1.6K]

4. KE increases by a factor of 16 is the answer

Explanation:

Kinetic energy = (1/2)mv² = 0.5 mv²

where

m = mass, and v = velocity.

So at 15 mph,

K E = 0.5 m (15) ² = 112.5 m

And at 60 mph,

K E = 0.5 m (60)² = 1800 m

m is the mass, and not meters.

So, 1800 m/112. 5 m = 16

16 times the Kinetic Energy.

6 0

3 years ago