Which of the following is not a an example of dissipated energy?
b. kinetic
When energy is changed from one form to another, ____.
b. all of the energy can be accounted for
Answer:
A separation technique to separate solids from a solution. Crystallization can be defined as the process through which the atoms/molecules of a substance arrange themselves in a well-defined three-dimensional lattice and consequently, minimize the overall energy of the system.
Explanation:
Answer:
Angular displacement will be 21 rad
So option (b) will be correct answer
Explanation:
We have given initial angular velocity ![\omega _i=5rad/sec](https://tex.z-dn.net/?f=%5Comega%20_i%3D5rad%2Fsec)
Final angular velocity ![\omega _f=9rad/sec](https://tex.z-dn.net/?f=%5Comega%20_f%3D9rad%2Fsec)
Time t = 3 sec
Angular acceleration is given by ![\alpha =\frac{\omega _f-\omega _i}{t}=\frac{9-5}{3}=1.333rad/sec^2](https://tex.z-dn.net/?f=%5Calpha%20%3D%5Cfrac%7B%5Comega%20_f-%5Comega%20_i%7D%7Bt%7D%3D%5Cfrac%7B9-5%7D%7B3%7D%3D1.333rad%2Fsec%5E2)
Now angular displacement is given by ![\Theta =\omega _it+\frac{1}{2}\alpha t^2=5\times 3+\frac{1}{2}\times 1.333\times 3^2=21rad](https://tex.z-dn.net/?f=%5CTheta%20%3D%5Comega%20_it%2B%5Cfrac%7B1%7D%7B2%7D%5Calpha%20t%5E2%3D5%5Ctimes%203%2B%5Cfrac%7B1%7D%7B2%7D%5Ctimes%201.333%5Ctimes%203%5E2%3D21rad)
So option (b) will be correct option