Explanation

Arranging the given hand parts in order,

5. Finger

4. Palm

2. Wrist

3. Elbow

1. Shoulder

So, the correct order is 5, 4, 2, 3, 1

Explanation

A variable is a characteristic or attribute (like a person, place, or thing) that can be measured and can vary.

In research, variables are what you observe or manipulate to study relationships or effects.

Explanation

Case study helps in understanding individual student behavior in depth.

It is widely used in guidance and counselling to solve personal, social, or academic issues.

Explanation

Discrimination power refers to a test’s ability to distinguish between high and low performers.

It ensures the assessment accurately reflects differences in students' understanding and skills.

Explanation

The principle of continuity states that development occurs throughout life without stopping.

It emphasizes that growth and change happen in a continuous, ongoing process.

Explanation

Given:

• Length of each train = 150 m

• Total length to cross = 150 m + 150 m = 300 m

• Time taken to cross = 15 seconds

• Trains are moving in opposite directions at the same speed

 Step 1: Use the formula

Relative speed= Total distance/Time ​= 300 / 15​ = 20 m/s

Since both trains have the same speed and are moving in opposite directions:

Relative speed=v+v=2v=20 m/s⇒v=20​/2=10 m/s

Step 2: Convert to km/h

$$1 text{m/s} = 3.6 text{km/h} Rightarrow 10 text{m/s} = 10 times 3.6 = 36 text{km/h}$$

Explanation

The bar is a metric unit of pressure, but not part of the International System of Units (SI).

Bar is defined as 100,000 Pa (100 kPa)

Explanation

The basic formula to find the area of a triangle is, area of triangle = 1/2 (b × h);

where 'b' is the base

and 'h' is the height of the triangle

Explanation

US House Speaker Nancy Pelosi landed in Taiwan on 2 August 2022.

Nancy Pelosi became Speaker of the United States House of Representatives in January 2019

Nancy Pelosi: only female in U.S. history to serve as speaker of the House

Explanation

Frederick Winslow Taylor is the father of scientific management.

FW Taylor was an American mechanical engineer.

FW Taylor was one of the first management consultants.

In 1909, Taylor summed up his efficiency techniques in his book The Principles of Scientific Management.