Tuesday
September 23, 2014

Homework Help: Physics(Please help)

Posted by Hannah on Saturday, June 9, 2012 at 4:24pm.

Some bacteria are propelled by motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular velocity has a radius of 1.9x10-8m, and a tangential speed at the rim of 2.7x10-5 m/s. (a) What is the angular speed (the magnitude of the angular velocity) of this bacterial motor? (b) How long does it take the motor to make one revolution?

I do not know how to start this. Thank you!



v=R, => =v/R,
T=2/

So is v 1.9e^-8?? I do not know what r is.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics(Please respond) - Some bacteria are propelled by motors that spin hair-...
Physics - Some bacteria are propelled by motors that spin hair-like flagella. A ...
physics - Some bacteria are propelled by biological motors that spin hair-like ...
College Physics - Some bacteria are propelled by motors that spin hair-like ...
physics - The flywheel of a steam engine runs with a constant angular speed of ...
phy - How much work is done by the motor in a CD player to make a CD spin, ...
physics - A CD has a diameter of 12.0 cm and a mass of 15.8 g. The motor in a CD...
physics - 2. At time t =0, the current to the dc motor is reversed, resulting in...
Physics-moment of inertia PLEASE HELP - this is the question : A CD has a ...
physics - When a wheel of radius R rotates about a fixed axis, do all points on ...

Search
Members