Determine the maximum weight w the man can lift with constant velocity using the pulley system, without and then with the "leading block" or pulley at a. the man has a weight of 201 lb and the coefficient of static friction between his feet and the ground is μs = 0.61.

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

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.

The ph is the a. independent variable b. the dependent variable c. control group