In the standing waves experiment, the string has a mass of 47.3 g and a length of 0.93 m. the string is connected to a mechanical wave generator that produce standing waves with frequency of f. the other end of the string is connected to a mass holder (mholder = 50.0 g) that carries a weight of 5.00x10^2 g. calculate the tension in the string. (g = 9.80 m/s^2)

Um vetor representa um deslocamento cujo módulo é 20 m. se v faz um ângulo de 60 graus com a horizontal, qual é o valor das componentes horizontal e vertical deste vetor?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

An object's buoyant force and weight mean the same thing.a. trueb. false