Which term is defined as a push or a pull?
2 answers:
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Answer:
Acceleration = 1.33m/s² East
Explanation:
Given the following data;
Initial velocity = 10m/s
Final velocity = 50m/s
Time = 30secs
To find the acceleration;
In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.
This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.
Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.
Mathematically, acceleration is given by the equation;
Where,
a is acceleration measured in
v and u is final and initial velocity respectively, measured in
t is time measured in seconds.
Substituting into the equation, we have;
Acceleration = 1.33m/s² East
Answer:
Explanation:
Given:
temperature of source reservoir,
temperature of sink reservoir,
energy absorbed from the source,
work done,
a.
<u>Now change in entropy of the surrounding:</u>
<em>Since heat engine is a device that absorbs heat from a high temperature reservoir and does some work giving out heat in the universe as the byproduct.</em>
b.
<u>We know Carnot efficiency is given as:</u>
<u>Now the Carnot work done:</u>
.......................(1)
c.
From eq. (1) we have the Carnot work, so the difference:
Now, we find: