Answer:
Explained
Explanation:
In the given example, a profit-maximizing perfectly competitive firm is producing rubber bands. The average total cost of producing is higher than the price per unit of the product. The firm will be incurring a loss. But the average variable cost is lower than price. This means the price is able to cover variable costs.
The firm in this situation will continue to produce in the short run, Though in the long run if the price is still lower than the average total cost the firm will exit the market because of incurring losses.
Answer:
0.21 m/s/s.
Explanation:
Whenever there is an action force acting on a body, there will be a reaction force.
Here the force with which the astronaut throws the tool is given as 16 N.
Force is measured in newtons and is equal to the rate of change of momentum.
Since the astronaut has a mass, she experience a reaction force. It is given by F = ma, according to Newton's 2nd law.
16 = 75 a
⇒ Acceleration = a = F/m = 16/75 = 0.21 m/s/s
<span>1. Which of the following explains why a bicycle uses the pedals as a lever to move the heavy rider along the sidewalk?
</span>
C. reduces the resistance force
The mechanical advantage of a compound machine is related to the mechanical advantage of all the simple machines involved.
True
Answer:
306.08 kPa
Explanation:
Given data
Average stress of first wave = 3811 kPa
amplitude of first wave ( A1 ) = 430 kPa
Frequency of first wave = 6 Hz
<u>Determine the average stress of the second sinusoidal component in kPa </u>
Amplitude of the additional wave (A2add) =
= 430 / 2 = 215 kPa
next we will determine the resultant amplitude of the second wave
A2 = 
= 
= 
=
= 480.79
hence the average stress of the second sinusoidal component
= 
=
= 306.08 kPa
Answer: 30.34m/s
Explanation:
The sum of forces in the y direction 0 = N cos 28 - μN sin28 - mg
Sum of forces in the x direction
mv²/r = N sin 28 + μN cos 28
mv²/r = N(sin 28 + μcos 28)
Thus,
mv²/r = mg [(sin 28 + μ cos 28)/(cos 28 - μ sin 28)]
v²/r = g [(sin 28 + μ cos 28)/(cos 28 - μ sin 28)]
v²/36 = 9.8 [(0.4695 + 0.87*0.8829) - (0.8829 - 0.87*0.4695)]
v²/36 = 9.8 [(0.4695 + 0.7681) / (0.8829 - 0.4085)]
v²/36 = 9.8 (1.2376/0.4744)
v²/36 = 9.8 * 2.6088
v²/36 = 25.57
v² = 920.52
v = 30.34m/s