\(\frac{\sqrt{GR}}{2}\)
\(\frac{\sqrt{2GM}}{R}\)
\(\frac{\sqrt{2G}}{R}\)
\(\frac{\sqrt{GM}}{R}\)
Correct answer is B
The expression for the escape velocity \(v_e\) of an object from a planet of mass M and radius R using the universal gravitational constant G is:
\(v_e = \frac{\sqrt{2GM}}{R}\)
$2.00
$4.00
$10.00
$20.00
Correct answer is C
Average fixed cost decreases as the number of output increases. Hence, if a firm spent $20 to produce 5 bags of rice, when it increases the output level to 10 bags of rice the cost will not change because it is a fixed cost, but rather, the same amount of fixed costs will be spread over a larger number of units of output.
Hence, the $20 cost that was used to produce 5 bags of rice, will accommodate the new level of output.
If 5 bags were produced at $20
Then 10 bags will also be produced at $20 cost
TFC = AVC x Q
$20 x 5 bags x = $100
AVC = \(\frac{TFC}{Q}\)
AVC for 10 bags =
\(\frac{100}{10}\) = $10.00
One feature of the average fixed cost is that it
Falls continuously but is never equal to zero
Is U-shaped and intersects the Y-axis
Rises and falls faster than the marginal cost
Is always higher than the average variable cost
Correct answer is A
The average cost curve keeps falling as the level of output rises. It remains positive, and never reaches a zero value, and never turns negative.
Increasing returns to scale suggests that
A firm can make a profit by reducing output
A firm can make more profit by increasing output
As the producer reduces the quantity of raw materials used, the marginal product will double
As the producer increases the quantity of raw materials used, the marginal product will fall
Correct answer is B
Increasing returns to scale is when the output increases in a greater proportion than the increase in input.
A large firm may experience diseconomies of scale if there is
Difficulty in coordinating decisions
Division of labour in production
Employment of more specialist
Decrease in the cost of production
Correct answer is A
Diseconomies of scale occur when a firm or business grows so big that the costs per unit of output increase. If the firm becomes so large that it can no longer efficiently coordinate production activities, it will most likely experience diseconomies of scale.