Answer:
The kinetic energy of the disk is 254.4 J.
Explanation:
The kinetic energy of the disk is given by:

The moment of inertia of the solid disk is:

The mass is:

Now, we need to find the angular acceleration as follows:
Also, the torque is related to the tangential force:



Now, we can find the angular speed:
since it is started from rest
Finally, the kinetic energy of the disk is:

Therefore, the kinetic energy of the disk is 254.4 J.
I hope it helps you!
Answer:

Explanation:
Given:
- diameter of hose pipe,

- diameter of nozzle,

- volume flow rate,

<u>Now, flow velocity in hose:</u>



<u>Now, flow velocity in nozzle:</u>



We know the Bernoulli's equation:

when the two points are at same height then the eq. becomes




Answer: Colby we both dumb if we need brainly lol
Explanation:
To get x on its own, you times the 3 over to the other side so the 3 cancels out on the LHS.
~ x greater than or equal to -18
(C)
True . this is called a complex substance