Consider two cylindrical conductors made of the same ohmic material. V1 ~E1 I1 ℓ1 r1 b V2 ~E2 I2 ℓ2 r2 b If rho2 = rho1 , r2 = 2 r1 , ℓ2 = 2 ℓ1 , and V2 = V1 , find the ratio R2 R1 of the resistances.

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

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

A-of 75 cm by cm by 17.5 cm up. of is 2 kg a , in ,if it is in , kg/?