Explanation

Explanation

Explanation

Kepler's Third Law of Planetary Motion states:

T² = (4π²/G * (M₁ + M₂)) * a³

Where:

T = Orbital Period

a = Semi-major Axis

G = Gravitational Constant

M₁ and M₂ = Masses of the two bodies (e.g., planet and star)

This law shows that the square of the orbital period (T) is proportional to the cube of the semi-major axis (a).

Explanation

Explanation

Cosmic rays are high-energy particles, primarily protons and atomic nuclei, that travel through space at nearly the speed of light.

They originate from sources like supernovae and other cosmic events and can reach Earth from outside the solar system.

Explanation

• The electricity from a cell (such as a battery) is Direct Current (DC).
• It is the flow of electric charge in one direction only, without changing direction.
• This is the type of current used in electronic devices such as smartphones, laptops, and televisions.

Explanation

Information is the output from a computer that results from processing input data.

Data is the input, and the computer processes it to produce useful information.

Data (input) → Processing → Information (output)

Explanation

The speed of sound depends on the medium's density and elasticity.

It travels fastest in solids (due to tightly packed molecules) and slowest in gases (like air).

Glass (Solid) – ~5,640 m/s

Water (Liquid) – ~1,480 m/s

Wood (Solid) – ~3,300–3,600 m/s

Air (Gas) – ~343 m/s

Explanation

Explanation