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3 years ago

Which measurements are scalar quantities?

Chemistry

1 answer:

Kobotan [32]3 years ago

3 0

Answer. 12 km/hr and 2 m are scalar quantities.

Explanation

Scalar quantities are those quantities which only have magnitude but no direction, for example: speed, time, mass etc.

Vector quantities are the quantities which have both magnitude and direction,for example : acceleration, momentum etc.

5 m northeast and 2 m north are vector quantities telling us magnitude and direction both that is 5 m in north east direction and 2 m in north direction.

12 km/hr and 2 m are scalar quantities telling us only speed and distance respectively without specific directions.

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Someone help me Explain how non-genetic factors can affect phenotype. Give an example.

Yanka [14]

Answer:

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3 years ago

\The specific heat of aluminum is 0.21 cal g°C . How much heat is released when a 10 gram piece of aluminum foil is taken out of

atroni [7]

<u>Answer: </u>The amount of heat released is 84 calories.

<u>Explanation: </u>

The equation used to calculate the amount of heat released or absorbed, we use the equation:

$Q= m\times c\times \Delta T$

where,

Q = heat gained or released = ? Cal

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c = specific heat of aluminium = 0.21 Cal/g ° C

Putting values in above equation, we get:

$\Delta T={\text{Change in temperature}}=(10-50)^oC=-40^oC$

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Hence, the amount of heat released is 84 calories.

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Answer:

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3 years ago

Read 2 more answers

PLZ HELP I WILL GIVE BRAINLISTS TO RIGHT ANSWER

galina1969 [7]

..........The answer is B

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3 years ago

If you can answer as many of these as possible that would be great, will give thanks, 5 stars, and brainliest :)

alexandr1967 [171]

Answer:

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Personal opinion question.
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Goodluck!

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3 years ago