Calculate the velocity of a neutron needed to achieve a wavelength of 1.50 å . (take the mass of the neutron m=1.6749×10−27kg).

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.