Physics
What is the range of masses involved in the study of Physics?

10-19 kg to 1055 kg
10-19 kg to 1038 kg
10-30 kg to 1030 kg
10-30 kg to 1055 kg

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Physics
The wall of a dam is broader at the base

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

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