Question

Помогите! Что больше масса директора или масса воздуха в его кабинете, если масса директора 70 кг, а размеры кабинета 4м*6м*3м? объем ,занимаемый мебелью и сам им директором, считайте равным 3 м3. плотность воздуха в его кабинете 1,23 кг/м3!

Answer 1

1)Vвозд=4*6*3-3=69м3
2)mвозд=Vвозд*p=69*1.23=84,87кг.
Ответ: масса воздуха больше массы директора.

Answer 2

Calculation of the Mass of the Director and the Air in the Office

To calculate the mass of the director and the mass of the air in the office, we need to consider the volume of the office, the density of air, and the volume occupied by the furniture and the director.

Given information: - Mass of the director: 70 kg - Dimensions of the office: 4m x 6m x 3m - Volume occupied by furniture and the director: 3 m^3 - Density of air in the office: 1.23 kg/m^3

To find the mass of the air in the office, we need to calculate the volume of the office and subtract the volume occupied by the furniture and the director. Then, we can multiply the resulting volume by the density of air to find the mass of the air.

Calculation Steps:

1. Calculate the volume of the office: - Volume = length x width x height = 4m x 6m x 3m = 72 m^3

2. Calculate the volume occupied by the furniture and the director: - Volume occupied = 3 m^3

3. Calculate the volume of air in the office: - Volume of air = Volume of the office - Volume occupied by furniture and the director - Volume of air = 72 m^3 - 3 m^3 = 69 m^3

4. Calculate the mass of the air in the office: - Mass of air = Volume of air x Density of air - Mass of air = 69 m^3 x 1.23 kg/m^3 = 84.87 kg

5. Calculate the total mass in the office: - Total mass = Mass of the director + Mass of air - Total mass = 70 kg + 84.87 kg = 154.87 kg

Therefore, the total mass in the office, including the director and the air, is approximately 154.87 kg.

Please note that the calculations provided above are based on the given information and assumptions.