2. A water pump that consumes 2 kW of electric power when operating is claimed to take in water from a lake and pump it to a pool whose free surface is 30 m above the free surface of the lake at a rate of 50 L/s. Determine if this claim is reasonable

the claim is false

Explanation:

Power consumed = mgh

m = ρv where volume per seconds ( 1 l = 0.001 m³) = 50 L/s × 0.001 m³ = 0.05 m³,  ρ density of water = 1000 kg/m³

P consumed = ρv gh = 0.05 m³×1000 kg/m³ × 9.8m/s  × 30 m = 14700 = 14.7 Kw

This claim is false because the power consumed is greater then the 2kW  reported.

answer:

explanation:

assault rifle is a rapid-fire, magazine-fed rifle designed for military use. it is a shoulder-fired weapon that allows the shooter to select between semi-automatic (requiring you pull the trigger for each shot), fully automatic (hold the trigger and the gun continuously fires) or three-shot-burst modes.

answer:

the answer is d

explanation: