A filament bulb labelled 240V, 40W. Calculate the heat energy produced in one second, if the efficiency of the bulb is 80%.

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

Which component of the earth’s atmosphere is decreased due to photosynthesis?