As a talented grad of CMPEN 270, your new job as a digital designer is to design a "greedy" vending machine that accepts only ni
ckels, dimes, and quarters. It is "greedy" because it does not give back any change! There is only one type of snack inside the vending machine which sells for 20 cents. To simplify the problem, assume only one coin is accepted at a time and generates the following inputs (XY) to the state machine. (USE T-Flip Flops ONLY)
Condition XY
No coins were put in the vending machine 00
One nickel was put in the vending machine 01
One dime was put in the vending machine 10
One quarter was put in the vending machine 11
Condition XY
No coins were put in the vending machine 00
One nickel was put in the vending machine 01
One dime was put in the vending machine 10
One quarter was put in the vending machine 11
1 answer:
Answer:
See explaination
Explanation:
In the below answer "Z" is the output. please kindly check attachment for further details.
When z=1 , the vending machine gives snacks
z=0 , the vending machine doesn't give snacks.
And z becomes 1( high) only when the machine gets 20 cents or more than 20 cents. Since the machine doesn't give change, after giving snacks it will restart from initial state A (where no coins were put).
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Answer:
The dude was killed around 6:30PM
Explanation:
Newton's law of cooling states:
where,
= initial temp
= temp of room
= temp after t hours
= how fast the temp is changing
= time (hours)
because the body was initlally 31ºC when the police found it
because that was the room temp
because the body temp drop to 30ºC after 1 hour
t = 1 because that's the time it took for the body temp to drop to 30ºC
we don't know k so we must solve for this
rearrange the equation to solve for k
plug in the numbers to solve for k
Now that we know the value for k, we can find the moment the murder occur. A crucial information that the question left out is the temperature of a human body when they're still alive. A living human body is about 37ºC. We can use that as out initial temperature to solve this problem because we can assume that the freshly killed body will be around 37ºC.
because the body was 37ºC right after being killed
because that was the room temp
because the body temp when the police found it
we solved this earlier
t = ??? we don't know how long it took from the time of the murder to when the police found the body
Rearrange the equation to solve for t
plug in the values
t ≈ 4.337 hours from the time the body was killed to when the police found it.
The police found the body at 11:00PM so subtract 4.337 from that.
11 - 4.33 = 6.66 ≈ 6:30PM
Answer:
The graph representing the linear inequalities is attached below.
Explanation:
The inequalities given are :
y>x-2 and y<x+1
For tables for values of x and y and get coordinates to plot for both equation.
In the first equation;
y>x-2
y=x-2
y-x = -2
The table will be :
x y
-2 -4
-1 -3
0 -2
1 -1
2 0
The coordinates to plot are : (-2,-4) , (-1,-3), (0,-2), (1,-1) ,(2,0)
Use a dotted line and shade the part right hand side of the line.
Do the same for the second inequality equation and plot then shade the part satisfying the inequality.
The graph attached shows results.
Answer:
|W|=169.28 KJ/kg
ΔS = -0.544 KJ/Kg.K
Explanation:
Given that
T= 100°F
We know that
1 °F = 255.92 K
100°F = 310 .92 K
We know that work for isothermal process
Lets take mass is 1 kg.
So work per unit mass
We know that for air R=0.287KJ/kg.K
W= - 169.28 KJ/kg
Negative sign indicates compression
|W|=169.28 KJ/kg
We know that change in entropy at constant volume
ΔS = -0.544 KJ/Kg.K