5. Which of these affect the brightness of a bulb? Choose all that apply. the length of wire
the thickness of wire
whether the wire is coiled or straight
the voltage of the battery
the number of bulbs in a circuit
the number of batteries in a circuit​

Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.

What does the law of conservation of mass state?

What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%