Explanation

The theorem you mentioned is known as Pythagoras' Theorem, which states:

$$c^2 = a^2 + b^2$$

where:

• $c$ is the hypotenuse (the longest side of a right-angled triangle).
• $a$ and $b$ are the other two sides.

It was discovered by the ancient Greek mathematician Pythagoras and is fundamental in geometry.

Explanation

• Gases can be converted into liquids by cooling, a process known as condensation.
• As the temperature decreases, the particles of the gas slow down and come together, forming a liquid.

Explanation

Acrocentric chromosomes are chromosomes with one arm (p arm) that is significantly shorter than the other arm (q arm).

The p arm is often very small, and may be barely visible, while the q arm is much longer.

Examples of acrocentric chromosomes include chromosomes 13, 14, 15, 21, and 22 in humans.

Explanation

Power is calculated as the rate of work done or energy transferred:

Power = Work / Time

= 20 J / 10 s

= 2 W

So, the machine's power output is 2 watts.

Explanation

• Replication is the process by which a cell makes an exact copy of its DNA before cell division, ensuring that the new cell receives a complete set of genetic instructions.
• This process is crucial for the transmission of genetic information from one generation of cells to the next.

Explanation

The law of independent assortment states that genes for different traits are distributed to gametes independently of one another, leading to a variety of genetic combinations in the offspring.

Explanation

Barium is an alkaline earth metal, which is a group of elements in the periodic table that includes:

• Magnesium (Mg)
• Calcium (Ca)
• Strontium (Sr)
• Barium (Ba)
• Radium (Ra)

These elements are in group 2 (formerly group IIA) of the periodic table.

Explanation

• NaCl is also known as Sodium Chloride, or common table salt.
• It is a classic example of an ionic compound, where sodium (Na) loses an electron to become a positively charged ion (cation), and chlorine (Cl) gains an electron to become a negatively charged ion (anion).

Explanation

How does the Navstar GPS work for different applications? (5)

The Navstar GPS works by using a constellation of satellites that send signals to GPS receivers on the ground, allowing them to calculate precise location coordinates.

It is used in various applications like navigation, mapping, surveying, military operations, and location tracking for vehicles and personal devices.

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Explanation

 A blood pressure reading of 60/90 mmHg is considered low blood pressure (hypotension).