已知时点电荷位于原点,静止于y轴上,以速度v沿x轴匀速运动,试分别求出,各自所受的力,如何解释两力不是等值反向?
A、(1); (2).
B、(1); (2).
C、(1); (2).
D、(1); (2).
(2)写出供给曲线方程。
(3)如果价格为1000美元,厂商产量为多少?利润水平为多少?在成本曲线图上表示出你的结论。
a. Suppose that a firm's production function is q=9x1/2in the short nun, where there are fixed costs of $ 1000, and x is the variable input whose cost is S 4000 per unit. What is the total cost of producing a level o[ output q? In other words, identify the total cost function C(q)?
b. Write down the equation for the supply curve.
e. If price is $ 1000, how many units will the firm produce? What is the level of profit? Illustrate your answer on a cost - curve graph.
A、UP=UO.
B、 UP<UO.
C、UP>UO.
D、无法确定的(因不知电场强度公式).
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