Personal ethics come from what you believe in as a person no what u or others like or dislike so ot would be false
Answer:
hi how are u fine thanks you
Answer:
Shawn's kinetic energy is 61.45 J.
Explanation:
Given;
Mass of the system is, ![m=52.3\ kg](https://tex.z-dn.net/?f=m%3D52.3%5C%20kg)
Displacement of the bike is, ![d=1.6\ km=1.6\times 1000=1600\ m](https://tex.z-dn.net/?f=d%3D1.6%5C%20km%3D1.6%5Ctimes%201000%3D1600%5C%20m)
Time taken is, ![t=17.4\ min=17.4\times 60=1044\ s](https://tex.z-dn.net/?f=t%3D17.4%5C%20min%3D17.4%5Ctimes%2060%3D1044%5C%20s)
Let the constant velocity be
.
For constant velocity, magnitude of velocity is given as distance by time.
Therefore, ![v=\frac{d}{t}=\frac{1600}{1044}=1.533\ m/s](https://tex.z-dn.net/?f=v%3D%5Cfrac%7Bd%7D%7Bt%7D%3D%5Cfrac%7B1600%7D%7B1044%7D%3D1.533%5C%20m%2Fs)
Now, kinetic energy of a body is given as:
![KE=\frac{1}{2}mv^2](https://tex.z-dn.net/?f=KE%3D%5Cfrac%7B1%7D%7B2%7Dmv%5E2)
Here, ![m=52.3\ kg,\ v=1.533\ m/s](https://tex.z-dn.net/?f=m%3D52.3%5C%20kg%2C%5C%20v%3D1.533%5C%20m%2Fs)
![\therefore KE=\frac{1}{2}\times 52.3\times (1.533)^2\\KE=0.5\times 52.3\times 2.35\\KE=61.45\ J](https://tex.z-dn.net/?f=%5Ctherefore%20KE%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes%2052.3%5Ctimes%20%281.533%29%5E2%5C%5CKE%3D0.5%5Ctimes%2052.3%5Ctimes%202.35%5C%5CKE%3D61.45%5C%20J)
Therefore, Shawn's kinetic energy is 61.45 J.
The highest trophic level has the least available energy in kilojoules.
Even though the food web is not shown in the question, but we know that energy decreases steadily as it is passed on from one trophic level to the next according to the second law of thermodynamics.
Energy enters into the system from the sun. The primary producers utilize this energy to produce food. As plants are eaten by animals, this energy is transferred along the food web an diminishes at each higher trophic level.
At the highest trophic level, the the least available energy in kilojoules in this food web is found.
Learn more: brainly.com/question/2233704
False, wood is a solid structure that is not see through