¿De qué manera se propagaron y reflejaron los frentes de ondas cuando se perturbó el agua con el dedo? Describan.

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?