Question

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Answer 1

Answer:

1. power = work/time

therefore power of pump=4×10⁵/10 = 4×10⁴

2. pressure = force/area

therefore p = 300/30=10

3. 1g/cm³=1000kg/m³ therefore 600 kg/m³ =0.6 kg/m³

4. mass = v ×d

Answer 2

Answer:

your answer is in the attachment

hope it's helpful