What is the weight of a 150g marble in water if it is completely submerged in water? Density of water 1000 kg / m3, marble 2700 kg / m3.
Weight in water is equal to the difference between gravity and buoyancy (Archimedes force):
P = mg-pgV
V = m / p marble.
P = m (g-pg / p marble) = 0.15 (10-10000 / 2700) = 0.945Н
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.