A round asteroid has a surface gravity
of 0.0288 m/s^2. If the mass of the
asteroid is 1.10 x 10^18 kg, what is its
radius?

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

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.