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postnew [5]
2 years ago
8

An engine operating on Dual cycle has a compression ratio of 12. The pressure and temperature at the start of adiabatic compress

ion is 100 KPa. and 37 degree Centigrade. The peak pressure of the cycle is not no exceed 8000 KPa. and the heat supplied to the cycle is 2000 KJ per Kg. of air. Determine the cycle thermal efficiency
Mathematics
1 answer:
viktelen [127]2 years ago
7 0
I am not sure but I hope you have a good day good luck
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What is the surface area of the following triangular prism?
Allisa [31]
This question was answered but no solution was given. 

We already solve for the B or area of the triangular base which was 5.25cm².

There are 2 triangular faces in the prism so 5.25cm² x 2 = 10.50cm²
There are 3 rectangular face in the prism, we need to get the area of each.

area of a rectangle = length x width
rectangle 1: 5 cm x 4 cm = 20 cm²
same dimension with rectangle 2. so, area is 20 cm² also
rectangle 3: 5 cm x 2.8 cm = 14 cm²

let us all add up the area of each surface.
2 triangle = 10.50 cm²
3 rectangles = 20 cm² + 20 cm² + 14 cm² = 54 cm²

10.50 cm² + 54 cm² = 64.50 cm²
8 0
3 years ago
Write the expression in simplest form.<br><br> (-11/2x + 3) -2 (-11/4x - 5/2) = ?
mina [271]

(-\frac{11}{2}x + 3) - 2(- \frac{11}{4}x - \frac{5}{2}) = ?

in simplest form-

(-5\frac{1}{2}x + 3) -2( 2\frac{3}{4} x -2\frac{1}{2})

6 0
2 years ago
It is worked out that 4 ladles full of soup each will feed 160 people. The customers have complained in the past that the portio
polet [3.4K]
160 people x 4 ladle/1 person = 640 ladles full
640 ladles x 1 person/5 ladles = 128 people fed
7 0
3 years ago
Evaluate this function: For f(x) = -2x + 9, find f(5)
saul85 [17]

f(5) is -1

Step-by-step explanation:

  • Step 1: Given f(x) = -2x + 9, find f(5)

f(5) = -2 × 5 + 9 = -10 + 9 = -1

8 0
3 years ago
Read 2 more answers
a rolling pin is shaped like a cylinder with a diameter of 2 inches and a height of 10 inches . how many square inches of space
Liula [17]

Answer:

62.8 square inches

Step-by-step explanation:

we know that

To find out how many square inches of space the rolling pin comes in contact with after one complete roll, determine the lateral area of the rolling pin

The lateral area of a cylinder is given by the formula

LA=\pi Dh

we have

D=2\ in\\h=10\ in\\\pi=3.14

substitute

LA=3.14(2)(10)=62.8\ in^2

3 0
2 years ago
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