Answer:
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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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visible light
B.
visible light and infrared light
C.
infrared light
D.
infrared light and ultraviolet light
Answer:
visible light
Explanation:
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Answer:
When it is cloudy, many of the sun’s rays never reach the Earth. It leads to cooler temperatures.
Explanation:
During the day, the sun warms the earth. When the sky is clear, more heat reaches the earth's surface . This leads to warmer temperatures.
However, when the sky is cloudy, a few drops of clouds reflect some of the sun's rays. As a result, less solar energy can reach Earth's surface, causing Earth to heat up more slowly. This leads to cooler temperatures.
If cloudy skies are forecast when forecasting daytime temperatures, expect lower temperatures than you would expect if clear skies were forecast.
Similarly, cloud cover at night has the opposite effect. When the sky is clear, the heat emitted from the earth's surface freely escapes into space, resulting in cooler temperatures.
However, when there are clouds, some of the heat from the earth's surface is captured by the clouds and returned to the earth. As a result, temperatures drop more slowly than when the sky is clear.
Pendulum
Bow and Arrow
Roller Coaster
Answer:
Neglecting, air resistance, friction and breaking, all the condition has conservation of mechanical energy.
Explanation: