how much does a baby weigh if his mass is 4.2k and gravity is 9.8
3.5 Kilograms
Nothing since weight is measured in Newtons. Kilograms are used for measuring mass.
3 kilograms - if you are asking about human babies.
The increase in a newborn's brain weight is mainly due to rapid growth and development of brain cells and connections during the early stages of life. As the baby experiences new stimuli and learns new skills, the brain forms new neural connections and increases in mass. This growth is crucial for the baby's cognitive development and ability to learn and adapt to their environment.
Weight is a force, so weight is measured in newton. However, when people talk about a person's "weight" they usually mean its "mass" - people tend to confuse that. Mass is measured in kilograms.
Kilogram is a unit of MASS, not a unit of WEIGHT. A small child might have this mass (a newborn typically has a mass somewhere between 2-4 kg.)
The weight of an object of mass 2m is 2mg. Weight is directly proportional to mass, so if you double the mass, you double the weight.
The raccoon has a body weight of 3.5 to 9 kg (8 to 20 lb).
Mass and weight are not forces.But weight or a pull of gravity of an object with mass has force
Anything with mass has weight; air has mass, therefore it has weight.
Mass is the mass, weight is mass with gravity acting upon it
weight and mass measures the volume