Temperatures of four liquid substances are shown in the
chart.

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?

Which atomic model was proposed as a result of j. j. thomson’s work?

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.