What is the de Broglie wavelength of a neutron that has fallen 1.2 m in a vacuum chamber, starting from rest

Determine the maximum r-value of the polar equation r =3+3 cos 0

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance