**Calculating the Speed of the Train**

To calculate the speed of the train, we need to use the formula:

Speed = Distance / Time

Given that the distance between the two stations is 360 km and the train takes 9 hours to cover this distance, we can substitute these values into the formula:

Speed = 360 km / 9 hours

Simplifying this equation, we find:

Speed = 40 km/h

Therefore, the speed of the train is 40 km/h.

**Measuring the Time Period of a Simple Pendulum**

To measure the time period of a simple pendulum, we need to follow these steps:

1. Set up the experiment: Attach a small mass to a string and suspend it from a fixed point. Ensure that the string is long enough to allow the pendulum to swing freely.

2. Measure the length of the pendulum: Use a ruler or measuring tape to measure the length of the string from the point of suspension to the center of mass of the object attached to it. This length is denoted as "L" in the formula for the time period.

3. Displace the pendulum: Pull the pendulum to one side and release it, allowing it to swing back and forth.

4. Measure the time: Use a stopwatch or timer to measure the time it takes for the pendulum to complete one full swing, from one extreme point to the other and back. This time is denoted as "T" in the formula for the time period.

5. Repeat the measurement: Repeat the process multiple times to ensure accuracy and consistency in your measurements.

6. Calculate the time period: The time period (T) of a simple pendulum is calculated using the formula:

Time Period = 2π√(L/g)

Where "π" is a mathematical constant (approximately 3.14) and "g" is the acceleration due to gravity (approximately 9.8 m/s²).

By substituting the measured values of "L" and "g" into the formula, you can calculate the time period of the simple pendulum.

Speed = distance/time
So speed = 360/9 = 40 km/hour