Find the size of the force between two objects with charges 2 C and -1 C respectively and separated by a distance 1 m.

Find the force between two charges when they are brought in contact and then separated by 4.00 cm, charges are initially 2.00 nC and -1.00 nC. The force, in μN is

In a Coulomb’s Law experiment, if the charge of both objects is doubled, what would happen to the force on the second charged object?

In a Coulomb’s Law experiment, if the charge of one object is doubled, what would happen to the force on the other charged object?

The diagrams below represent 5 different standing sound waves set up inside of a set of organ pipes 1 m long

If you close one end of an open organ pipe, the wavelength of the fundamental

A closed organ pipe has

A person vibrates the end of a string sending transverse waves down the string. If the person then doubles the rate at which he vibrates the string while maintaining the same tension , the speed of the waves:

To increase the efficiency of an electrical distribution system

 A transformer is designed to convert voltage from 240 V a.c mains to 12 V ac, and has 4000 turns in its primary coil. The number of turns in its secondary coil is