For your sink at home, the flow rate in is 5000 units/hr. accumulation is 2500 units. what is the accumulation rate if the out flow is 60 units/min? multiple choice

a) 2400 units/hr b) 400 units/hr c)100 units/hr d) 1400 units/hr e) 3400 units/hr

f) other

Explanation:

Using law of conservation of mass, you can do a mass balance or volume balance:

If you divide by time unit, you get flow balance:

Here you have:

        Convert to rate in units/h: (60 units /min) × (60 min/h) = 3600 units/h

        Flow rate out = 3600 units/h

Then:

i just learnt this recently but i need to look through my notes again

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them