Una lancha se mueve hacia el este, a 16m/s, por un río que fluye hacia el sur a una velocidad de 9.0 m/s. A-)Si el río mide 136 m de ancho, ¿cuánto tiempo tardará la lancha en cruzarlo? B-) ¿Qué distancia río abajo recorrerá la lancha al cruzar el río?

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

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?