What is the difference between 5 ml of water and 5.0 ml of water?

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

What are the similarities & differences between a thermistor and a light dependent resistor in physics?