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discuss whether change in dollar rate has an influence on exports or not.
How does exchange rate affect imports and exports?
The exchange rate has an effect on the trade surplus (or deficit), which in turn affects the exchange rate, and so on. In general, however, a weaker domestic currency stimulates exports and makes imports more expensive. Conversely, a strong domestic currency hampers exports and makes imports cheaper.
Question2 Marks: 10
A 3kg plastic tank that has a volume of 0.2m3 is filled with liquid water. Assuming the density of water is 1000kgm-3determine the weight of combine system.
Assumption The density of water is constant throughout.
mwater= ρV=(1000 kgm-3)( 0.2 m3)=200kg 3 Marks
mtotal= mwater + mtank=200kg + 3kg = 203kg 3 Marks
W=mg=(203 kg)(9.81ms-2)=1991.40N ≈ 1990N (up to 3 significant digits) 4 Marks