Two rods are made from materials that have different Young's moduli. The rods are constructed to have the same length and same cross-sectional area. The same force is hung from the end of each rod. The rod with the smaller Young's modulus will stretch more than the rod with the larger Young's modulus. Is this true or false?

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

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

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above