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Aleksandr [31]
3 years ago
11

Which two forms of energy are usually converted directly from solar radiation for houses in temperate climates. a. Thermal and E

lectrical b. Chemical and Nuclear c. Mechanical and Electrical
Engineering
1 answer:
katrin2010 [14]3 years ago
3 0

Answer:

The correct answer is option 'a': Thermal and Electrical energy

Explanation:

We know that the solar radiation that we receive from sun provides us heat. Thus the solar radiation is a natural source of thermal energy which can be utilized in solar cooker's to cook food or to warm water to generate steam in Solar thermal power plants. The steam generated is used to drive a turbine and hence produce electricity.

As we know that solar radiation is converted into directly usable forms of energy by the solar panels. The solar panels work on the principle of photo-electric effect in which light energy is directly converted into electrical energy to run our electrical devices at home such as light bulbs, fans, e.t.c. An excellent application of this principle is the international space station that orbits the earth and is fully powered by solar energy.

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Write a program that randomly chooses between three different colors for displaying text on the screen. Use a loop to display tw
11Alexandr11 [23.1K]

Answer:

INCLUDE Irvine32.inc

.data

msgIntro  byte "This is Your Name's fourth assembly extra credit program. Will randomly",0dh,0ah

         byte "choose between three different colors for displaying twenty lines of text,",0dh,0ah

         byte "each with a randomly chosen color. The color probabilities are as follows:",0dh,0ah

         byte "White=30%,Blue=10%,Green=60%.",0dh,0ah,0

msgOutput byte "Text printed with one of 3 randomly chosen colors",0

.code

main PROC

;

//Intro Message

       mov edx,OFFSET msgIntro  ;intro message into edx

       call WriteString         ;display msgIntro

       call Crlf                ;endl

       call WaitMsg             ;pause message

       call Clrscr              ;clear screen

       call Randomize           ;seed the random number generator

       mov edx, OFFSET msgOutput;line of text

       mov ecx, 20              ;counter (lines of text)

       L1:;//(Loop - Display Text 20 Times)

       call setRanColor         ;calls random color procedure

       call SetTextColor        ;calls the SetTextColor from library

       call WriteString         ;display line of text

       call Crlf                ;endl

       loop L1

exit

main ENDP

;--

setRanColor PROC

;

; Selects a color with the following probabilities:

; White = 30%, Blue = 10%, Green = 60%.

; Receives: nothing

; Returns: EAX = color chosen

;--

       mov eax, 10              ;range of random numbers (0-9)

       call RandomRange         ;EAX = Random Number

       .IF eax >= 4          ;if number is 4-9 (60%)

       mov eax, green           ;set text green

       .ELSEIF eax == 3         ;if number is 3 (10%)

       mov eax, blue            ;set text blue

       .ELSE                    ;number is 0-2 (30%)

       mov eax, white           ;set text white

       .ENDIF                   ;end statement

       ret

setRanColor ENDP

6 0
4 years ago
In a production turning operation, the foreman has decreed that a single pass must be completed on the cylindrical workpiece in
stellarik [79]

Answer:

V = 125.7m/min

Explanation:

Given:

L = 400 mm ≈ 0.4m

D = 150 mm ≈ 0.15m

T = 5 minutes

F = 0.30mm ≈ 0.0003m

To calculate the cutting speed, let's use the formula :

T = \frac{pi* D * L}{V*F}

We are to find the speed, V. Let's make it the subject.

V = \frac{pi* D * L}{F*T}

Substituting values we have:

V = \frac{pi* 0.4 * 0.15}{0.0003*5}

V = 125.68 m/min ≈ 125.7 m/min

Therefore, V = 125.7m/min

7 0
3 years ago
A 2-m-long and 3-m-wide horizontal rectangular plate is submerged in water. The distance of the top surface from the free surfac
UkoKoshka [18]

Answer:

864 KN

Explanation:

Atmospheric pressure is defined as the force per unit area exerted against a surface by the weight of the air above that surface.

Please kindly check attachment for the step by step solution of the given problem.

3 0
3 years ago
A steel rod, which is free to move, has a length of 200 mm and a diameter of 20 mm at a temperature of 15oC. If the rod is heate
kherson [118]

Explanation:

thermal expansion ∝L = (δL/δT)÷L ----(1)

δL = L∝L + δT ----(2)

we have δL = 12.5x10⁻⁶

length l = 200mm

δT = 115°c - 15°c = 100°c

putting these values into equation 1, we have

δL = 200*12.5X10⁻⁶x100

= 0.25 MM

L₂ = L + δ L

= 200 + 0.25

L₂ = 200.25mm

12.5X10⁻⁶ *115-15 * 20

= 0.025

20 +0.025

D₂ = 20.025

as this rod undergoes free expansion at 115°c, the stress on this rod would be = 0

3 0
3 years ago
A flat plate is subjected to a load of 5KN as shown in figure. The plate material is grey cast iron FFG 200 and the factor of sa
lianna [129]

Answer:

57.14 N/mm2

Explanation:

3 0
3 years ago
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