3 years ago

What has less energy than visible light in the electromagnetic spectrum?

Chemistry

1 answer:

QveST [7]3 years ago

3 0

Infrared waves, micro waves, radio waves because they are weaker.

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The number 4012 has how many significant figures?

grandymaker [24]

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8 figures.

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3 years ago

iron has a density of 7.86 g cm3 could a block of metal with a mass of 18.2 and a volume of 2.56 cm^3 be iron?

satela [25.4K]

The density of the block will be "7.11 gm/cm³". A further explanation is provided below.

Given values are:

Density of iron,

$7.86 \ g/cm^3$

Mass of block of metal,

$18.2 \ gm$

Volume of block,

$2.56 \ cm^3$

By using the formula,

→ $Density = \frac{Mass}{Volume}$

then,

→ The density of block will be:

= $\frac{Mass}{Volume}$

= $\frac{18.2}{2.56}$

= $7.11 \ gm/cm^3$

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3 years ago

Answer in detail?? What precautions would you take to protect yourself from an earthquake, when you are at home and when you are

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Answer:

If you're indoors, stay inside. If you're outside, stay outside. If you're indoors, stand against a wall near the center of the building, stand in a doorway, or crawl under heavy furniture (a desk or table). Stay away from windows and outside doors.

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3 years ago

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What is the wavelength of a 3 x 1012 Hz infrared wave?

Alenkasestr [34]

Answer:

Explanation:

wavelength = speed of light/ frequency

= (3 x 10^8 m/s) / (3 x 10^12 Hz)

= 1 x 10^-4 m

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3 years ago