3) Realizar los siguientes ejercicios de trabajo y energía. a) Un vehículo arrastra un auto a 450m con una fuerza
constante de 550N. Calcula el trabajo que realiza.

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear