Answer:
<h2>28.57 hours</h2>
Explanation:
The time taken can be found by using the formula
d is the distance
v is the velocity
From the question we have
We have the final answer as
<h3>28.57 hours</h3>
Hope this helps you
This question involves the concepts of thermal efficiency and hot reservoir.
The smallest possible temperature of the hot reservoir would be "960 k".
The thermal efficiency of an engine is given by the following formula:
Another formula for thermal efficiency of an engine is:
where,
T₁ = Temperature of the hot reservoir = ?
T₂ = Temperature of the cold reservoir = 285 k
Therefore,
<u>T₁ = 960 k</u>
<u></u>
Learn more about thermal efficiency here:
brainly.com/question/1332182?referrer=searchResults
Acceleration = vf-vi/t
8=vf-0/4
8=vf/4
vf=8×4
=32m/s