State whether the following statement are true or false ..and correct the false statement
1] gases do not exert pressure on the walls of the container in which they are enclosed.
2] atmospheric pressure at high altitudes is less than the atmospheric pressure on the ground.
3] a force cannot change the speed of a moving object.
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Answer:
1. False
2. True
3. False
Explanation:
1. As we know that gasses exerts pressure in all directions so pressure will be exerted on the walls also
3. A force can change the speed of a moving body. If the force is in the opposite direction it will decrease the speed but if its in the direction of motion it will increase
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