Answer:
A-18500J
B-232.5 rad/s
Explanation:
A- As the cylinder rotates through 1000rad, it sweeps a distance of
So the work, which is distance times force, of the tension done on the cylinder through that distance is
W = Td = 50 * 370 = 18500 J[/tex]
B- The torque that exerts on the cylinder by the tension is
To = TR = 50*0.37 = 18.5 Nm
As the cylinder is hollow, its moments of inertia is
The torque is generating an angular acceleration of:
The time it takes to go from rest to 1000 rad
Therefore the final rotational speed is
92 elements occur naturally.
Hope this help‼️
Photon has no rest mass but when photon travels at the speed of light, it gains momentum.
The energy of the photon is E= pc, c = speed of the photon and p= its momentum.
∴ E = pc
but p = h/λ (This comes from De-broglie's theory)
∴ E = hc/λ
frequency = ν = c/λ
∴E = hν
Answer:
maybe:)
Explanation:
it really just depends on the subject and grade for me, I'm good in history and writing!