You are working in a factory that uses many motors. your supervisor is pointing out a motor to you that shows signs of weakness and may suddenly seize, so that the rotor suddenly stops rotating. the motor in normal operation carries a direct current of 0.750 a when connected to a 120 v power supply. the resistance of the motor windings is 19.6 ω. your supervisor asks you to determine by what factor the rate of change of internal energy in the windings will increase if the rotor seizes while it is operating and the supply voltage is not cut off.

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?

Why do atoms emit energy of only specific wavelengths

Five structural isomers have the formula c6h14. where needed, draw the structure and give the iupac name of all five isomers.