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?

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

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

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