Blog

A wave on a string propagates at 59 m/s with a frequency of 24 Hz. Calculate the wavelength (units: m). NOTE: Watch correct use of rounding and significant figures Enter numerical answer in proper decimal format, not scientific notation Do not enter units with the answer  

A 12.2 m long rope is shaken up and down creating transverse waves which travel the length of the rope in a time of 2.00 seconds. If the tension in the rope is 40.0 N, calculate the mass of the rope.

A wave on a string propagates at 36 m/s with a frequency of 23 Hz. Calculate the wavelength (units: m). NOTE: Watch correct use of rounding and significant figures Enter numerical answer in proper decimal format, not scientific notation Do not enter units with the answer  

Two tuning forks of frequency 480 Hz and 482 Hz are struck simultaneously. What is the beat frequency resulting from the two sound waves?

The rotor of a synchronous machine rotates at the speed of the rotating magnetic field produced by the stator.  

Given the word bank, match the labels to the parts of the Synchronous Motor.

A series DC motor is well-suited for applications requiring high starting torque. 

When acting as a motor, typically, synchronous machines are self-starting. 

In normal operation, to maintain a field in the rotor, there is slip between the rotor and stator speeds. 

The windings on the rotor for inducing rotor currents at startup are often called