A paramecium is covered with motile hairs called cilia that propel it at a speed of 1 mm/s. If the paramecium has a volume of 2 x 10-13 m3 and a density equal to that of water, what is its de Broglie wavelength when in motion? What fraction of the paramecium’s 150 μm length does this wavelength represent?

A bullet from a .357 Magnum has a mass of 11.66 gms and a muzzle velocity of 387 m/s. What is the de Broglie wavelength of the bullet? Select one: a. 2.34 x 10-35 m b. 1.47 x 103 m c. 1.47 x 10-34 m d. 2.34 x 102 m

When light of wavelength 244nm illuminates an aluminum surface, a stopping potential of 1.0V is needed to reduce the photoelectric current to zero. a. Find the work function of aluminum. b. Find the wavelength of light that would require a stopping potential of 1.5 V.

3. A. 279.7 kJ of energy are required to remove one mole of electrons from one mole of lithium atoms. What is the maximum wavelength of light that can remove one electron from one lithium atom? (h = 6.626 x 1034J•sec, c = 3.0 x 10* m/s) B. Assume that a hydrogen atom's electron has been excited to the n= 5 energy level. How many different wavelengths of light can be emitted as this excited electron loses energy? Include a diagram to support your answer.