Explanation

Motion occurs when a body changes its position relative to another body or its surroundings.

It can be described in terms of displacement, velocity, and acceleration.

Explanation

Explanation

"Few" is an indefinite pronoun because it refers to an unspecified number of people.

Indefinite pronouns do not point to any particular person or thing, e.g., few, some, many, several.

Explanation

Then, Ahmed's age after 15 years $=(x+15)$ years.
Ahmed age of 5 years back $=(x-5)$ years.
Given, $(x+15)=5(x-5)$
$x+15=5x-25$
$5x-x=15+25$
$4x=40$

Explanation

The renewable energy sources are:

• Water energy
• Wind energy
• Tidal energy
• Hydroelectric
• Ocean energy
• Geothermal energy
• Biomass
• Biogas

The non-renewable energy sources are:

• Fossil fuels or Hydrocarbon fuel (Oil, Natural gas, Coal)
• Nuclear energy

Explanation

In a longitudinal wave, particles of the medium move parallel to the direction of wave propagation.

Sound waves in air are a common example of longitudinal waves.

Explanation

"For" is used with a duration of time (e.g., for an hour, for two days).

"Since" is used for a specific point in time (e.g., since morning, since 2 PM).

Here, "nearly an hour" is a duration, so "for" is the correct choice.

Explanation

Minimum Players required for games/sports

Cricket: 11

Football: 11

Hockey: 11

Basketball: 5

Rugby football: 15

Polo: 4

Water polo: 7

Volleyball: 6

Kabaddi: 7

Snooker: 1

Boxing: 2

Gymnastics: 8

Ice Hockey: 6

Explanation

Explanation

To find the distance between two points, use the distance formula:

Distance = √((x₂ - x₁)² + (y₂ - y₁)²)

Given points:

(x₁, y₁) = (2, 3)

(x₂, y₂) = (7, 3)

Substitute the values:

Distance = √((7 - 2)² + (3 - 3)²)

= √((5)² + 0²)

= √(25)

= 5