physics

a motor turns 21.6 revolutions in 0.75 second. what is the angular speed of the motor in rpm? in radians per second?

  1. 👍 1
  2. 👎 0
  3. 👁 115
asked by joshua
  1. rpm = 21.6 rev/(0.75/60 min)= 60*21.6/0.75 = ___

    rad/s = (21.6 rev)*(2 pi rad/rev)/0.75 s
    = ____

    1. 👍 1
    2. 👎 0
    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    At time t =0, the current to the dc motor is reversed, resulting in an angular displacement of the motor shaft given by è = (198 rad/s)t – (24 rad/s2)t2 – (2 rad/s3)t3 (15 marks) a. At what time is the angular velocity of the

    asked by bruce on April 27, 2013
  2. Physics

    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 2.5x10-5 m/s. (a) What is the

    asked by Jessi on June 7, 2012
  3. physics

    Some bacteria are propelled by biological motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular velocity has a radius of 1.70e-8 m, and a tangential speed at the rim of 2.32 e-5 m/s. a) What

    asked by Natasha on March 30, 2012
  4. Physics(Please respond)

    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

    asked by Hannah on June 8, 2012
  5. Physics(Please help)

    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

    asked by Hannah on June 9, 2012
  6. College Physics

    At t=0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by theta(t)= 258t - 20.4t^2 - 1.47t^3 How many revolutions does the motor shaft turn through between the time

    asked by Lizzy on October 30, 2012
  7. physics

    2. At time t =0, the current to the dc motor is reversed, resulting in an angular displacement of the motor shaft given by θ = (198 rad/s)t – (24 rad/s2)t2 – (2 rad/s3)t3 a. At what time is the angular velocity of the motor

    asked by bruce on April 27, 2013
  8. Physics

    An electric motor has 72 turns of wire wrapped on a rectangular coil, of dimensions 3cm by 4cm. Assume that the motor uses 14A of current and that a uniform 0.5T magnetic field exists within the motor. 1)What is the maximum torque

    asked by Belle on April 7, 2007
  9. College Physics

    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 1.1x10-8m, and a tangential speed at the rim of 2.0x10-5 m/s. (a) What is the

    asked by Angela on March 5, 2012
  10. physics

    A freely running motor rests on a thick rubber pad to reduce vibration. The motor sinks h=10 cm into the pad. Estimate the rotational speed in RPM (revolutions per minute) at which the motor will exhibit the largest vertical

    asked by kjhgkjhgkjhg on April 29, 2013

More Similar Questions