Question

22. Give reasons:
a. Tides rising above the surface level of the sea
b. Satellites can circle in a circular orbit​

Answer 1

Answer:

The gravitational forces exerted by the moon and sun on the earth and also the rotation of earth is responsible for the tides. Due to the gravitational attraction the water rises above the sea level and tide is formed. When satellite moves around a planet, the gravitational force of attraction acts on it.

Explanation:

2 . The motion of an orbiting satellite can be described by the same motion characteristics as any object in circular motion. The velocity of the satellite would be directed tangent to the circle at every point along its path.

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