Calculate the effective radiation dosage (in rems) for a 73-kg person who is exposed to 3.0 x 109 particles of alpha radiation. assume that 79% of the radiation is absorbed, each alpha particle has an energy of 7.7x10 j, and that the rbe of the alpha particles is 15. note that rbe is sometimes called quality factor, abbreviated as q. number 0.03465 rem

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure

It is really hard for me right know

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.