If R is the relative density of the solid, prove that that d =R (d, - d2)​

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

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

What is the role of lenses in microscopy?