Radioactive "decay" means particles and stuff shoot OUT of a nucleus.
After that happens, there's less stuff in the nucleus than there was before.
So the new mass number is always less than the original mass number.
Acceleration = (final velocity - initial velocity) / time
= (35-65)/10
= -3 m/s2
D. sample 4 would be your answer
The metal will no longer give the correct temperature reading if we do not drip off the water before it is placed in the calorimeter.
Explanation:
- The calorimeter is a device used to measure the flow of heat from a chemical reaction or a physical change.
- A basic calorimeter is consists of a metal container of water above the combustion chamber. The process of measuring heat is called calorimetry.
- As soon as the water begins to boil the metal should be placed so that it can obtain a constant flow of thermal energy from the boiling water instead of placing the water in cold water receiving inconsistent temperature.
- When you remove the tube with a metal form from boiling water, you hesitate before dumping the metal, the metal will no longer be the temperature of boiling water.
Answer:
Explanation:
Mass of the sum =
70% of this mass is
Mass of hydrogen in the sun is
Mass of a hydrogen atom =
Dividing the mass hydrogen in the sun by the mass of one hydrogen atom will give us the number of hydrogen atoms
The number hydrogen atoms in the Sun is