Ablock is 2cm wide, 5.4cm deep, and 3.1cm long. the density of the block is 8.5g/cm. what is the mass of the blocks?

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .

A6.0-μf air-filled capacitor is connected across a 100-v voltage source. after the source fully charges the capacitor, the capacitor is immersed in transformer oil (of dielectric constant 4.5). how much additional charge flows from the voltage source, which remained connected during the process?

During the past 150 years in the united states, how did energy consumption compare to population growth