Which physical law underlies the first law of thermodynamics?
1 answer:
Answer:
Conservation of energy
Explanation:
The first law of thermodynamics is given by :
Here,
Q is amount of heat added to the system
is change in internal energy
W is amount of work done by the system
It is clear that the energy can be neither created nor destroyed, it remains conserved. Hence, first law of thermodynamics shows that conservation of energy.
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Answer:
Explanation:
Given:
- Distance from the shore,
- distance of house from the shore,
- speed of rowing,
- speed of walking,
<em>For the least amount of time to reach the house one must row at the nearest point on the shore and then walk from there.</em>
<u>Now the time taken to reach the shore:</u>
<u>Time taken in walking to house from the shore:</u>
<u>Therefore total time taken:</u>
Answer:
<h2>16.59 m/s²</h2>Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
f is the force
m is the mass
From the question we have
We have the final answer as
<h3>16.59 m/s²</h3>Hope this helps you