a person walks 8.00 kilometers at 120° and then walks 7.00 kilometers at 180° find the person (distance and direction)

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

What determines the amount of inertia an object has

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.