Absolute error is defined as the difference between the measured value and the true value.

The standard acceleration due to gravity at the surface of the Earth is approximately 9.81 m/s².

The standard acceleration due to gravity on the surface of the Earth is approximately 9.81 m/s².

The angle for the first minimum is given by sin θ = λ/a, where a is the slit width. Thus, sin θ = 500 nm / 0.5 mm = 0.001, leading to θ ≈ 30°.

Angular momentum L = mvr, where v is the tangential speed. L = 2 kg * 4 m/s * 3 m = 24 kg·m²/s.

The approximate value of gravitational acceleration on Earth is 9.8 m/s².

The atomic number of an element is defined as the number of protons in its nucleus. Therefore, an element with 12 protons has an atomic number of 12.

The average duration of a human menstrual cycle is approximately 28 days.

The average duration of a human pregnancy is approximately 40 weeks.

Red blood cells typically have an average lifespan of about 120 days before they are removed from circulation by the spleen.

Average power (P) is given by P = V_rms × I_rms × power factor. Thus, P = 100 V × 5 A × 0.5 = 250 W.

Average power (P) is given by P = V × I × PF. Here, P = 230 V × 5 A × 0.8 = 920 W.

When the power factor is 1, the average power consumed is maximum and is given by P = V_rms × I_rms.

The average volume of blood in an adult human body is approximately 5 to 6 liters.

The balanced equation in acidic medium is Cr2O7^2- + 6Fe^2+ → 2Cr^3+ + 3Fe^3+.

The base unit of mass in the SI system is the kilogram (kg).

The base unit of time in the SI system is the second (s).

The basic structural and functional unit of an animal's body is the cell.

The basic structural and functional unit of life in animals is the cell.

The cell is the basic structural and functional unit of life, as it is the smallest unit that can carry out all life processes.

Fatty acids are the basic structural units of lipids.

The basic unit of classification in biology is the species, which is defined as a group of organisms that can interbreed and produce fertile offspring.

A gene is the basic unit of heredity, responsible for the transmission of traits from parents to offspring.

The cell is the basic unit of life as it is the smallest structural and functional unit of an organism.

Boiling point elevation (ΔTb) = Kb * m = 0.512 °C kg/mol * 0.5 mol/kg = 0.256 °C.

All of the above statements are true regarding the boiling point trends of amines.

The bond angle in a water molecule is approximately 104.5 degrees due to the bent shape caused by lone pairs on oxygen.

The bond angle in water is approximately 104.5 degrees due to the bent shape of the molecule.

The bond angle in water is approximately 104.5° due to the repulsion between the lone pairs on the oxygen atom.

Bulk modulus (K) = -ΔP / (ΔV/V) = 1000 kPa / (0.01 m³ / 1 m³) = 100000 kPa = 10000 kPa.