Thursday

December 18, 2014

December 18, 2014

Posted by **HELP!!!!** on Saturday, March 26, 2011 at 3:59pm.

(a) Find the angular acceleration.

(b) Find the net torque required.

(c) Find the angle turned through in 27 s.

(d) Find the work done by the net torque.

(e) Find the kinetic energy of the turbine at the end of the 27 s.

- physics -
**Damon**, Saturday, March 26, 2011 at 4:07pmYou should not have to ask this question. I am sure exactly how to do it is in your text book.

(a) alpha = change in speed (140)/change in time (27)

(b) Torque = I alpha = 23 * alpha

(c) A = 0 + 0 t + (1/2) alpha t^2

(d)and (e) work done = change in kinetic energy

= (1/2) I w^2

where w = alpha t = 27 alpha

**Answer this Question**

**Related Questions**

heat - the main purpose of the turbine in the turbojet engine is to? The turbine...

physics - A wind turbine is initially spinning at a constant angular speed. As ...

Physics - A wind turbine is initially spinning at a constant angular speed. As ...

Physics - A turbine is spinning at 3600rpm . Friction in the bearings is so low...

Physics - A turbine is spinning at 3600 rpm. Friction in the bearings is so low ...

PHYSICS - A steam turbine operates between hot and cold reservoir temperatures ...

Thermodynamics - A turbine operating under steady flow conditions receives steam...

Physics - A turbine spinning with angular velocity w_0 rad/sec comes to a halt ...

Physics - Water flows approx. 0 over a dam at the rate of 660 kg/s and falls ...

PHYSICS ---HELP! - Water flows approx. 0 over a dam at the rate of 660 kg/s and ...