The efficiency of an ideal Carnot heat engine can be written as:
where
is the temperature of the cold region
is the temperature of the hot region
For the engine in our problem, we have
and
, so the efficiency is
Probably not strong because the car weights 2000 more than the rope
It will take the object <em>5.306 seconds </em>to come to rest.
<u>Given the following data:</u>
- Initial velocity = 52 m/s
- Acceleration = -9.8
To find how much time it will take the object to come to rest, we would use the first equation of motion;
Mathematically, the first equation of motion is calculated by using the formula;
<em>Time, t </em><em>=</em><em> 5.306 seconds.</em>
Therefore, it will take the object <em>5.306 seconds </em>to come to rest.
<u />
<u>Note</u>: The final velocity (V) of the object would be zero (0) m/s when the object comes to rest.
Read more: brainly.com/question/8898885
4. 1 and 2 only.
1. the downward force is the force of gravity.
<span>2. The upward force exerted is the Normal reaction from the floor.</span>
Answer:
high frequent sound
Explanation:
because if its low than its slower.