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aleksandrvk [35]
3 years ago
5

Which of the following Identifies the challenges faced by scientists experimenting with using artificial photosynthesis as

Engineering
1 answer:
bezimeni [28]3 years ago
8 0

Answer:

The cost and size of materials needed to produce energy

Explanation:

Artificial photosynthesis is a chemical process that uses solar cells instead of chlorophyll to absorb sunlight and convert it into electricity. This process uses artificial leaves that require man-made catalyst to spilt water present in the air into hydrogen and oxygen. It is clear that the reaction requires heat from the sun for energy production thus the technology is expensive to be applied in most areas of the world. Additionally, results obtained from previous undertaken projects of this type has been ineffective and unsustainable because it involves a lot of trial and error.

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Smith wants to get a job in network systems. Which major should he choose to give him the best chance of getting a job?
frez [133]
Computer engineering
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Someone please help me with this I’m stuck on it ?!i don’t have a lot of time
Kitty [74]
Python, Ruby, JavaScript, Java, and C++
6 0
3 years ago
Put four red LED as a straight line and connect each of them to a corresponding analog output. Connect a potentiometer to a 5 Vo
N76 [4]

Explanation:

There has been no information about related to which programming language is to be used, writing code algorithm.

Defining I/O's ;

Analogue output

A01, A02, A03,AO4

Analogue Input;

AI_1   // potentiometer input

// Based on controller used, assign channels to I/O's

// code

int voltage

Voltage = AI_1;

If (Voltage > 0 && Voltage < 1.25)

 {

   A01 = voltage

   A02 = 0;

   A03= 0

   AO4= 0

 }

If (Voltage > 1.25 && Voltage < 2.5)

 {

   A01 = 1.25

   A02 = (Voltage -1.25);

   A03= 0

   AO4= 0

 }

If (Voltage > 2.5 && Voltage < 3.75)

 {

   A01 = 1.25

   A02 = 1.25

   A03=  (Voltage - 2.5);

   AO4= 0

 }

else

 {

   A01 = 1.25

   A02 = 1.25

   A03=  1.25

   AO4= (Voltage - 3.75);

 }

return

3 0
3 years ago
A rectangular conductor with a cross sectional area of 1.04 square millimeters (mm) ^2 has a resistance of 0.075 ohms. What woul
kogti [31]

Answer:

0.0375 ohms

Explanation:

The resistance of a material is the product of the resistivity of the material by the length of the material divided by its cross-section area.

Mathematically,

resistance= resistivity × length/area

In this case the resistivity of the material is the same, and the length is the same thus, assume a length of 1 unit, the cross-section area is the one changing

In applying the formula,

resistivity is r and length is l=1 unit, find the resistivity the material as;

resistance= resistivity * length /area

0.075=r*1/1.04

0.075=r*0.9615

0.075/0.9615 =r

r=0.078

use the r=0.078 , a length of 1 unit (assumed), and area of 2.08 mm² to find the new resistance

Resistance= resistivity * length /area

Resistance = 0.078*1/2.08

Resistance= 0.078 * 0.4807 = 0.0375 ohms

Point to note here is that the greater the cross-section area, the less the resistance.

4 0
3 years ago
What historical event allowed both aerospace fields to make enormous strides<br> forward? *
galina1969 [7]

Answer:

The world wars. Most notably world War II

Explanation:

The demand for aircrafts during these events led to extensive research into the design of aircrafts. Aircraft advanced within these years from a simple design to a more complex design; capable of carrying fire power and even became bomb equipped. Also, the material of choice of production moved from wood to metal and the engine was improved on to gain more speed and maneuverability.

6 0
4 years ago
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