Answer:
a)
aB = 240 mm/s² (↓)
aA = - 345 mm/s²
b) For the Block C
v₀ = 130 mm/s
For the Block A
v₀ = - 43.33 mm/s
c) Δx = 727.5 mm
Explanation:
a) For the Block B
v = v₀ + a*t
480 = 0 + a*(2)
aB = 240 mm/s² (↓)
Then we have
3*LA + 4*LB + LC = L
If we apply
d(3*LA + 4*LB + LC)/dt = dL/dt
3*vA + 4*vB + vC = 0
d(3*vA + 4*vB + vC)/dt = d(0)/dt
3*aA + 4*aB + aC = 0
aA = - (4*aB + aC) / 3
aA = - (4*240 mm/s² + 75 mm/s²) / 3
aA = - 345 mm/s²
b) For the Block C
v = v₀ + a*t
v₀ = v – a*t
v₀ = 280 – (75)(2) = 130 mm/s
For the Block A
When t = 2 s
vB = 480 mm/s
vC = 280 mm/s
we use the formula
3*vA + 4*vB + vC = 0
3*vA + 4*(480) + 280 = 0
vA = - 733.33 mm/s
Now, we can apply
v = v₀ + a*t
- 733.33 mm/s = v₀ + (- 345 mm/s2)(2 s)
v₀ = - 43.33 mm/s
c) We can use the equation
Δx = v₀*t + (1/2)*a*t²
Δx = 130*(3) + (1/2)(75)(3)²
Δx = 727.5 mm
Answer and Explanation:
The answer is attached below
The question is incomplete! Complete question along with answer and step by step explanation is provided below.
Question:
Calculate the equivalent capacitance of the three series capacitors in Figure 12-1
a) 0.01 μF
b) 0.58 μF
c) 0.060 μF
d) 0.8 μF
Answer:
The equivalent capacitance of the three series capacitors in Figure 12-1 is 0.060 μF
Therefore, the correct option is (c)
Explanation:
Please refer to the attached Figure 12-1 where three capacitors are connected in series.
We are asked to find out the equivalent capacitance of this circuit.
Recall that the equivalent capacitance in series is given by
Where C₁, C₂, and C₃ are the individual capacitance connected in series.
C₁ = 0.1 μF
C₂ = 0.22 μF
C₃ = 0.47 μF
So the equivalent capacitance is
Rounding off yields
The equivalent capacitance of the three series capacitors in Figure 12-1 is 0.060 μF
Therefore, the correct option is (c)
Answer: c. The VW engineers involved were ethically obligated to hold paramount the health, welfare and safety of the public even if their supervisors directed them to implement software and hardware that enabled cheating on the emissions testing software.
Explanation: The National Society of professional Engineers, NSPE define the code of ethics which must guide engineers in their duty. These codes act as principles of personal conduct, towards the public and their employers.
One of the areas covered by these codes is overriding importance of the safety and health of the public to any other factor. In addition, engineers are to avoid deception and maintain the reputation of their profession. These cannot be sacrificed for the financial gain of their employers or explained away by saying they are following the direction of their employers. While they have certain responsibilities to their employers, the health welfare and safety of the public is more important.
Answer:
Advantages of data analysis
Ability to make faster and more informed business decisions, backed by facts. Helps companies identify performance issues that require action. ... can be seen visually, allowing for faster and better decisions.
