Giselle leaves the ground at an angle of 25° above the horizontal at a velocity of 5.5 m/s to leap over the fence. Round all answers to the nearest hundredth.

a) What is the horizontal component of the gazelle’s velocity?

b) What is the vertical component of the gazelle’s velocity?

c) How much later did the Gisele hit the ground?

d) What is her maximum height?

e) How far did she leap?

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?

What’s the kinetic energy of the object? use . erica is competing in the shot put event at a track meet. she hurls a shot with a mass of 4 kilograms at a speed of 9 meters/second. the shot’s kinetic energy is joules.

The chemical formula for carbonic acid, a compound used in carbonated drinks, is h2co3. assume that these symbols represent the three elements of this compound: