Bismuth-210 has a half-life of 5 days. If you
started with a 1000-g sample of Bismuth-210,
how much would remain after 20 days?

The dissociation energy of a molecule is the energy required tobreak apart the molecule into its separate atoms. the dissociationenergy for a particular molecule is 5.48 x 10-18 j.suppose that this energy is provided by a single photon. determinethe (a) wavelength and (b) frequency of the photon

What type of electromagnetic wave is used in security pens? a. x-rays c. microwaves b. visible light d. ultraviolet radiation select the best answer from the choices provided

According to newton’s first law of motion, which force is expected to cause a body to accelerate?