3 years ago

Which of the following electromagnetic waves has the shortest wavelength?

Physics

1 answer:

Mrac [35]3 years ago

4 0

from shortest wavelength to longest:

Ultraviolet

visible

infrared

microwave

so the answer is B

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In Kepler's model of the solar system, the planets move around the Sun in _________ orbits.

cestrela7 [59]

B. elliptical.

The planets move in elliptical orbits round the Sun.

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3 years ago

Which bird on the wire, the one with a mass of 50g or the one with a mass of 60g, has the most potential energy?

Fynjy0 [20]

Answer:

one with 60g have the more potential

Explanation:

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3 years ago

In an adiabatc process, what happens when gases in a system are compressed?

likoan [24]

Answer:work is done, and temperature increases

Explanation:

In an adiabatic process, when gases are compressed, work is done on the liquid and the temperature increases

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3 years ago

A certain frictionless simple pendulum having a length l and mass m swings with period t. If both l and m are doubled, what is t

iVinArrow [24]

If l and m both are doubled then the period becomes √2*T

what is a simple pendulum?

It is the one which can be considered to be a point mass suspended from a string or rod of negligible mass.

A pendulum is a weight suspended from a pivot so that it can swing freely.

Here,

A certain frictionless simple pendulum having a length l and mass m

mass of pendulum = m

length of the pendulum = l

The period of simple pendulum is:

$T = 2\pi \sqrt{\frac{l}{g} }$

Where k is the constant.

Now the length and mass are doubled,

m' = 2m

l' = 2l

$T' = 2\pi \sqrt{\frac{2l}{g} }$

$T' = \sqrt{2}* 2\pi \sqrt{\frac{l}{g} }$

$T' = \sqrt{2} * T$

Hence,

If l and m both are doubled then the period becomes √2*T

Learn more about Simple Harmonic Motion here:

<u>brainly.com/question/17315536</u>

#SPJ4

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1 year ago

Given that an atom of a semiconductor has a diameter of 2.18 å , what is the maximum number of moles that fit in the channel of

andrezito [222]

<span>Convert angstroms to nm for atom diameter 2.18/10=.218 nm. Divide diameter by length width and height. 63.6/.218=292 74.2/.218=327 275/.218=1261 Multiply these to get volume of atoms 120,037,500 Convert atoms to moles using Avogadro number 120,037,500/6.02*10^23=2*10^-16 moles</span>

7 0

3 years ago