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2 years ago

A vehicle goes from 5 m/s to 50 m/s in seconds. What is it’s acceleration?

Chemistry

1 answer:

VLD [36.1K]2 years ago

7 0

Answer:

the acceleration i think is 10

Explanation:

5x10=50

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1 year ago

Calculate: A. Mercury has a specific Heat Capacity of 0.14 J/goC. How much heat is needed to raise the thermometer temperature 1

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Answer:

$\boxed {\boxed {\sf 56 \ Joules}}$

Explanation:

We are given the mass, specific heat, and temperature, so we must use this formula for heat energy.

$q=mc \Delta T$

The mass is 5 grams, the specific heat capacity is 0.14 Joules per gram degree Celsius. Let's find the change in temperature.

ΔT= final temperature - initial temperature
ΔT= 95°C - 15°C = 80°C

We know the variables and can substitute them into the formula.

$m= 5 \ g \\c= 0.14 \ J/ g \ \textdegree C \\\Delta T= 80 \ \textdegree C$

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Multiply the first numbers. The grams will cancel.

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Multiply again. This time the degrees Celsius cancel.

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56 Joules of heat are needed.

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2 years ago

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Answer:

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