cual sera la longitud total de un resorte que tiene una longitud de 80 m, con una constante de 32,000 N/m y se le aplica una fuerza de 60 kg

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?