Acontainer has the dimensions of 30 cm x 50 mm x 0.1 m. the density of its contents is 2.5
g/cm^3
what is the mass of the substance in kilograms?
3.8 kg
38 kg
380 kg
3,800 kg

3.8 kg.

Explanation:

Density may be defined as the mass of the substance per unit of the volume. The S.I. unit of the density is kg/m^3.

The dimension of the container = 30 cm x 50 mm x 0.1 m.

30 cm = 0.3 m ( 1 cm = 1/100m)

50 mm =  0.05 m ( 1mm = 1/1000m)

Volume of container = 0.3 m × 0.05 × 0.1m

Volume of container = 0.0015 or 1500 cm^3.

Density of the container = 2.5 g/cm^3.

Density = Mass / Volume

Mass of container = Density × volume.

Mass = 2.5 g/cm^3 × 1500 cm^3.

Mass = 3750g.

Mass = 3.8 kg (approx) as 1 g = 1/1000 kg.

Thus, the correct answer is option (1).

homeostasis is the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. and this is how it applies to the integumentary system. back to top. skin functions in homeostasis include protection, regulation of body temperature, sensory reception, water balance, synthesis of vitamins and hormones, and absorption of materials. when body temperature falls, the sweat glands constrict and sweat production decreases.