A0.20 kg particle moves along the x axis under the influence of a stationary object. the potential energy is given by u(x) = 8x2 + 2x4, where u is in joules and x is in meters. if the particle has a speed of 5.0 m/s when it is at x = 1.0 m, its speed when it is at the origin is:

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?

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

Often called simply "velocity," this is the velocity of an object at a particular moment in time.