A car travels at a speed of 50 km/h and accelerates for 45 seconds until it reaches a speed of 95 km/h. What was its acceleration?

Around each new moon and full moon, the sun, Earth, and moon arrange themselves more or less along a line in space. Then the pull on the tides increases, because the gravity of the sun reinforces the moon's gravity. In fact, the height of the average solar tide is about 50 percent of the average lunar tide.

Explanation:

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