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dlinn [17]
4 years ago
11

Write a grammar for a language whose sentences start with an even and non-zero number of x’s, end with an odd number of z’s, and

have a number of y’s in between equal to the total number of x’s and z’s in the sentence. For example, xxyyyyyzzz is a valid sentence.
Engineering
1 answer:
sveta [45]4 years ago
3 0

Answer:

GRAMMAR

S -> AB

A -> xxAyy | xxyy

B -> yyBzz | yz

EXPLANATION

A is for even number of x's followed by that number of y's

B is for odd number of y's followed by that number of z's

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If the open circuit voltage of a circuit containing ideal sources and resistors is measured at 6 V, while the current through th
Trava [24]

Given Information:

Current of Ideal source = Is = 100 mA = 0.100 A

Open circuit voltage = Voc = 6 V

Short circuit current = Isc = 200 mA = 0.200 A

Required Information:

Power absorbed by idea current source = ?

Answer:

Power absorbed by idea current source = 0.3 Watts

Explanation:

Ideal Current Source:

An ideal current source doesn't have internal resistance and provides constant current regardless of the voltage supplied to the circuit.

The power absorbed by the ideal source can be found using

P = Is²R

Where Is is the ideal source current and R can be found using

R = Voc/Isc

Where Voc is the open circuit voltage and Isc is the short circuit current.

R = 6/0.200

R = 30 Ω

Therefore, the power absorbed by the ideal current source is

P = Is²R

P = (0.100)²*30

P = 0.3 Watts

7 0
3 years ago
The displacement volume of an internal combustion engine is 2.2 liters. The processes within each cylinder of the engine are mod
soldier1979 [14.2K]

Answer:

A) 14.75

B) 3.36Kj

C) 2384.2k

D) 117.6kW

E) 57.69%

Explanation:

Attached is the full solutions.

5 0
4 years ago
Tech A says that to reassemble a duo-servo brake, first reassemble the brake shoes on the backing plate, and then attach the par
cupoosta [38]

A duo-servo break makes use of mechanical arrangements to multiply the braking force

The technician that gives the correct procedure of reassembly of duo-servo  brake is Tech B, therefore;

Tech B only is correct

The process by which the above answer is arrived at  

To reassemble a duo-servo brake, the first step is to reassemble on the brake shoe and parking brake cable, the parking brake lever. The star wheel assembly is then reassembled, and set aside after lubricating the floating end. The pads on the backing plate are lubricated and both brake shoes are then installed on the backing plate

Therefore, Tech A states that the brake shoes on the backing plate are reassembled first is not correct, while Tech B is correct

Learn more about duo-servo brake here:

brainly.com/question/13439898

3 0
3 years ago
to determine cam ring speed you must use a ___________________,____________________or a________________
saul85 [17]

Answer:

=> The total numbers of cylinders on the engine.

=> Total number of lobes in the cam ring.

=> The direction at which the cam ring rotates.

Explanation:

A cam is a kind of ring and a device that is being used in engines. One or the main purpose of using cams in engines us because it helps in the change or transformation of the rotational movement of the engine to a translational one. Instead of using a cam ring, a cam roller can be used in place.

There are three things that can be used to to determine the speed of cam ring speed and they are given below as;

=> The total numbers of cylinders on the engine.

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=> The direction at which the cam ring rotates.

5 0
3 years ago
What happens if your son makes a spark in a outlet and then the room goes dark
Kitty [74]

Answer:

He probably tripped the wiring, when metal hits the electricity it creates a reaction that burns the wiring.

Explanation:

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3 years ago
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