Answer:
I only really know the "How do we use these EM waves in our lives?" part srry
Explanation:
EM waves are used to make sure you cellphone, radio, TV, and etc. have service/ connection.
The motion of a car in relation to a reference point can be described by its position and direction. Speed can be determined by measuring the distance traveled in a specific time period.
A moving car can be an object in motion. In relation to a reference point, such as a stationary tree, the car's position and direction of motion can be described. For example, the car may be moving to the right of the tree.
To determine the car's speed, you can measure the distance it travels in a certain amount of time. For instance, if the car travels 100 meters in 10 seconds, its speed would be 10 meters per second (m/s).
In summary, by observing the position and direction of motion of an object in relation to a reference point, you can describe its motion. And by measuring the distance it covers in a given time period, you can determine its speed.
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