A wave travels along a stretched horizontal rope. The vertical distance from crest to the trough for this wave is 11 cm and the horizontal distance from crest to trough is 21 cm.
(a) What is the wavelength of this wave?
(b) What is the amplitude of this wave?

Rohit is trying to tune an instrument

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell