Mass = Volume × Density = 50 mL × 1 g/mL = 50g.

The mass of an electron is much smaller than that of a proton.

The third energy level can hold a maximum of 18 electrons.

Mean = (4 + 8 + 6 + 5 + 3) / 5 = 26 / 5 = 5.2

The measure of each interior angle in a regular hexagon is (n-2) * 180 / n = (6-2) * 180 / 6 = 120 degrees.

First, sort the data: 1, 3, 5, 7, 9. The median is the middle value, which is 5.

Midpoint formula: M = ((x1 + x2)/2, (y1 + y2)/2) = ((2 + 4)/2, (3 + 7)/2) = (3, 5).

The mode is the value that appears most frequently, which is 5.

The mode is the number that appears most frequently, which is 5.

The octal representation of the decimal number 8 is 10.

Percentage of salt = (5g / (5g + 95g)) * 100 = 5%.

Solving the equations gives the intersection point (1, 1).

The atomic nucleus is primarily composed of protons and neutrons.

ATP (Adenosine triphosphate) is the primary energy source that muscles use for contraction during motion.

The phosphagen system is the primary energy system used during high-intensity, short-duration activities, providing immediate energy through stored ATP and creatine phosphate.

Epithelial tissue primarily functions to protect and cover surfaces.

Ribosomes are responsible for protein synthesis in the cell.

The cerebellum is primarily responsible for coordinating voluntary movements and maintaining balance.

The cochlea converts sound waves into electrical signals that can be interpreted by the brain.

The primary function of the kidneys is to filter blood and remove waste products.

The vestibular system is responsible for maintaining balance and spatial orientation by detecting changes in head position.

Cellular respiration is the primary mechanism by which the body converts food energy into ATP, the usable form of energy for cells.

The auditory ossicles amplify sound waves and transmit them from the eardrum to the inner ear.

Muscle contraction primarily relies on ATP, which provides the energy needed for muscle fibers to contract.

There are 6 combinations to get a sum of 7 out of 36 total combinations, so the probability is 6/36 = 1/6.

The process of a solid changing directly into a gas is called sublimation.

The product of the roots of ax^2 + bx + c is c/a. Here, 6/1 = 6.

Area = πr²; 36π = πr²; r² = 36; r = 6 cm.

The binary representation of the decimal number 15 is 1111.

Insulin decreases blood sugar levels by facilitating the uptake of glucose into cells.