Ineed answer fast a sample of gold has a mass of 38.6 grams and a volume of 2 cm3. what is the density of gold? a sample of iron has a mass of 46.8 grams and a volume of 6 cm3. what is the density of iron? water has a density of 1.0 g/cm3. what is the mass of 10.0 cm3 of water

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field