Answer:
Density of rock piece = 2.7 g/cm³
Explanation:
Given:
Volume of rock piece = 18 cm³
Mass of rock piece = 48.6 gram
Find:
Density of rock piece
Computation:
We know relation between density, mass and volume,
Density = Mass / Volume
Density of rock piece = Mass of rock / Volume of rock
Density of rock piece = 48.6 / 18
Density of rock piece = 2.7 g/cm³
Answer:
Due to the law of conservation of energy.
Explanation:
Due to the law of conservation of energy, which states that the total amount of energy in any isolated physical system remains constant over time. Therefore, in pair production the energy of the boson must have higher energy than the sum of the rest mass energies of the created particles, otherwise this process would be creating energy, which violates the law of the conservation of energy.
The kilogram is the Standard International System of Units unit of mass. It is defined as the mass of a particular international prototype made of platinum-iridium and kept at the International Bureau of Weights and Measures.
Answer:
Statics which is when dealing with forces acting out on body and the possible motives of the body system. Kinetics which explains the motion that can occur in any type of situation.
Explanation: