Physics
What will happen if an object is dropped from a height and there is no air resistance?

It will fall with a constant speed and acceleration
Both speed and acceleration will increase
Its acceleration will increase
Its speed will increase

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Physics
The wall of a dam is broader at the base

To withstand pressure that is increased with atmospheric pressure
To withstand pressure that increases with depth
To withstand pressure that increases in a horizontal plane
Because streamlining is required

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