Physics Past Questions and Answers

If the frequency of the tuning fork at resonance is 256Hz, calculate the frequency of vibration of the wire when the tension in he wire is increased to 196N

The magnitude of the gravitational force between two particles 0.10m apart is 10N. If the distance between them is increased to 0.20m, calculate the magnitude of the new force

As the plates of a charged variable capacitor are moved closer together, the potential difference between them

What is the effective capacitance in the circuit?

What is the total energy stored by the capacitors?