Calculate the volume of a liquid with a density of 5.45 g/ml and a mass of 65g

Agalvanometer has an internal resistance of 100 ω and deflects full-scale at 2.00 ma. what size resistor should be added to the galvanometer to convert it to a milliammeter capable of reading up to 4.00 ma, and how should this resistor be connected to the galvanometer?

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e