Un cuerpo de 10N de peso esta apoyado sobre una superficie horizontal. Se le ata una cuerda y se tira de él con una fuerza de 15 N que forma un ángulo de 60° con la horizontal. ¿Cuál es la fuerza normal sobre el cuerpo?

Astring that is fixed at both ends has a length of 1.05 m. when the string vibrates at a frequency of 91.0 hz, a standing wave with five loops is formed. (a) what is the wavelength of the waves that travel on the string? (b) what is the speed of the waves? (c) what is the fundamental frequency of the string?

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15