The world record for the fastest train on Earth was set by abullet train from Tokyo to Osaka in Japan. Without passengers, it can travel at a speed of 300 km/hr. How many centimeters per second can it travel?
cm/sec. *round to nearest whole number *

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

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.

Ain is , is 's of ? 0.62 0.79 1.27 1.50