Is a 1.5 v battery is connected in a simple circuit to a lightbulb with a resistance of 8 ohms the amount of current flowing through the circuit

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

What is the speed vfinal of the electron when it is 10.0 cm from charge 1?

The amount of heat required to change liquid water to vapor at its boiling temperature is 2256 kj/kg. the amount of heat required to change liquid mercury to its vapor state at its boiling temperature is 295 kj/kg. one kg of each substance is currently at its boiling point. how will the amount of thermal energy required to change each substance from a liquid to a gas differ?