Question

ANSWER THE FOLLOWING QUESTIONS:
1. Why do rivers flow down to the sea?
2. A book placed on a table is at rest. Is the force of friction acting on it or not?
Explain.
3. Give few examples where you use field force in your daily life.
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Answer 1

Answer:

(A) rivers flow down to the sea due to the speed of water and slope of the river.

Answer 2

Answer:

1.Water rains down on the land and flows into the sea. ... As a cloud's water droplets or ice crystals grow larger, gravity tugs them to Earth in the form of rain and snow. And water makes its way back to the oceans, in pouring rivers

2.Water rains down on the land and flows into the sea. ... As a cloud's water droplets or ice crystals grow larger, gravity tugs them to Earth in the form of rain and snow. And water makes its way back to the oceans, in pouring rivers

3.Some examples for contact forces are a person throwing a ball or writing on paper. The contact forces are push, pull and friction. Some examples for non- contact forces are a magnet and a paperclip and the moon's gravity and the earth's tides.

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