*Class work* . 1. Calculate the work done by a body of weight 200N which moves through a distance of 12m.
2. What quantity of energy is expended when a 120-watt electric bulb is turned on for 3 hours .

In science class richard learns that a substance has a boiling point of 230 fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of his substance in degrees celsius

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

What methods could you use to solubilize calcium carbonate