what two precautions will you take to ensure an accurate result in determining the coefficient of friction between two surfaces

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 molecules are present in 3 mols of silicon dioxide (sio2)?

How is zig zagging a form of acceleration?