We have that heat flow out of the copper sample is mathematically given as
Q=8.86809J
<h3> Heat flow</h3>Question Parameters
Endothermic Reaction
It is common knowledge that an endothermic reaction is one where the system absorbs heat energy from the <em>environs</em>.
Exothermic Reaction
An exothermic reaction is one where the system releases heat energy to the <em>environs</em>.
Generally the equation for Heat is mathematically given as
Q=8.86809J
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Answer:
96.5 km/h
Explanation:
The average velocity of the train is given by:
where
d is the displacement
t is the time taken
For this train, we have:
d = 55 km south (displacement is a vector, so we must also consider the direction)
Substituting into the equation, we find the average velocity:
we know,
So,
Answer:
1.99 parsecs.
Explanation:
We have been given that the most recently discovered system close to Earth is a pair of brown dwarfs known as Luhman 16. It has a distance of 6.5 light-years.
We know that one light year equals to 0.306601 parsecs. To convert 6.5 light-years to parsecs, we will multiply 0.306601 by 6.5.
Therefore, Luhman 16 is approximately 1.99 parsecs away from the Earth.