What is the weight of 0.5 liters of alcohol, milk, mercury?

V = 0.5 l = 0.5 * 10 ^ -3 m ^ 3.

ρm = 1030 kg / m ^ 3.

ρрт = 13550 kg / m ^ 3.

ρsp = 789 kg / m ^ 3.

mm -?

mrt -?

msp -?

The mass of a substance is determined by the formula: m = ρ * V, where ρ is the density of the substance, V is the volume of the substance.

mm = ρm * V.

mm = 1030 kg / m ^ 3 * 0.5 * 10 ^ -3 m ^ 3 = 0.515 kg.

mрт = ρрт * V.

mrt = 13550 kg / m ^ 3 * 0.5 * 10 ^ -3 m ^ 3 = 6.755 kg.

msp = ρsp * V.

msp = 789 kg / m ^ 3 * 0.5 * 10 ^ -3 m ^ 3 = 0.3945 kg.

Answer: mm = 0.515 kg. mrt = 6.755 kg, msp = 0.3945 kg.



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.