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mass M which is attached to a vertical spring of spring
constant k as shown in the figure. The system oscillates
vertically. (a) Find the resultant force on the smaller
block when it is displaced through a distance x above
its equilibrium position. (b) Find the normal force on the
smaller block at this position. When is this force smallest
in magnitude ? (c) What can be the maximum amplitude
with which the two blocks may oscillate together ?
if a=0.5 and b=0.4 then what is 4a-b , b+4, 4(a+b-1) , 6a+b b-2a+1 a squared + b
price quantity demanded quantity supplied before tax quantity supplied after tax
20 340 440 380
19 340 430 340
18 340 410 290
17 340 380 230
16 340 340 160
15 340 290 80
14 340 230 0
What was the amount of the tax revenue raised for the government?
A $1020 B $1360 C $5440 D $6460
a) What options are available to firms in the short run to minimise their losses?
b) Using demand and supply analysis together with the cost curves, explain why the actions to minimise loss lead to firms’ making normal profit in the long run? 3 + 3 = 6 Marks