Density of an object is 2.835 G cm3 if the volume is 34 cm3 what is the mass of the object density

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

What three things determine the shape and size of a puddle when water is poured out onto a surface

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?