A body with a volume of 20 cm3 consists of a substance with a density of 2.5 g / cm3, what is the mass of the body?
As we know from the school curriculum in physics, the mass of an object can be calculated using the following formula:
m = v * p, where v is the volume of the item and p is its density.
Let us determine how many grams of body weight will be expressed, when from the condition of the task we know that its volume is 20 cm3, while the density of the substance of which it consists is 2.5 g / cm3:
m = 20 * 2.5 = 50.
Answer: Under such initial conditions, the body weight will be equal to 50 grams. That is, the correct answer is written under the letter B.
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.