Answer:
I dont know the answer for that question it's hard question isn't it
The density of the cube in grams per cubic centimeter = D = 2 gram / cm³
Explanation:
The Volume Of the Cube is V = a³
Its is given that the cube has sides measuring 5 cm each side.
V = ( 5 )³
= 5cm 5cm 5cm
V = 125 cm³
The Density Formula, Density= Mass / Volume.
Given that this cube has a mass of 250 grams.
to calculate density
D = ρ = m / V
= 250 / 125
= 2
D = 2 gram / cm³
Answer:
The molecules in a solid are close together and they vibrate in place. The molecules in a liquid move quickly and farther apart from eachother. The particles in a gas move freely at high speeds and slide past eachother.
Answer:
The daughter nuclide is selenium; 76:34 Se
Explanation:
The complete question is as follows;
is desired to determine the concentration of arsenic in a lake sediment sample by means of neutron activation analysis. The nuclide 75:33 As captures a neutron to form 76:33 As, which in turn undergoes beta decay. The daughter nuclide produces the characteristic gamma rays used for the analysis. What is the daughter nuclide?
solution:
Please check attachment for decay equations and explanations