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3 years ago

Who was responsible for the development of the rocket motor?

Computers and Technology

2 answers:

kiruha [24]3 years ago

6 0

Answer: Robert H. Goddard

Explanation: he developed and flew the first liquid-propellant rocket

AleksandrR [38]3 years ago

6 0

Answer:

-Technical Societies

Explanation:

Rocket enthusiasts and rocket clubs were active in Germany, the US, Russia, and other countries. Experimental rockets were designed, tested, and sometimes flown. Some of the experiments used liquid fuel, though solid-fuel rockets were also developed. In 1932, the rocket motor was developed as a reusable method for the flight of a rocket.

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A loop decision point for an algorithm consists of three features: an initial value, a set of actions to be performed, and a(n)

pychu [463]

Answer:

Option c is the correct answer for the above question.

Explanation:

A loop is used to repeat some lines in some specific times which depends on some conditions of the loop. If a person wants to print "welcome" on 5 times then he can do this by two ways one is writing a print statement 5 times and the other is states a loop that executes 5 times through condition. The loop is described or written by three necessary points which are:-

The fist is to initialize the initial value which tells the compiler for the starting point of the loop.
The second is to any action for that condition variable which takes the loop for the direction of ending points.
The third is a condition that defines the ending point of the loop.

The above question also states about the loop in which first and second points are given then the third point is necessary to complete the sentence which is states in option c. Hence the option c is correct while the other is not because--

Option 'a' states about the class operator which is not the part of the loop.
Option b states about the documentation plan which is also not the part of the loop.

5 0

3 years ago

2.3. Why is a foundation of particular importance when building and designing structures?

bearhunter [10]

Answer:

A foundation plays three major roles in the construction of a structure. A good and strong foundation keeps the building standing while the forces of nature wreak havoc. Well-built foundations keep the occupants of the building safe during calamities such as earthquake, floods, strong winds etc.

6 0

3 years ago

What is your definition of Green/Eco Driving?

Masja [62]

Using/driving with an electric car or using car that is ecologically friendly (less pollution) Ex.Bio Fuel

8 0

3 years ago

Learning Task 5. Identify the terms being described below. Write your answer in your answer

Charra [1.4K]

Answer:

1. Waste management.

2. Substitution.

3. Personal hygiene practices.

4. Emergency preparedness.

5. Elimination.

6. Flammability limit.

7. Occupational safety and health (OSH).

8. Engineering controls.

9. Personal protective equipment (PPE).

10. Administrative controls.

Explanation:

1. Waste management: this refers to the collection, transportation, processing or disposal, managing and monitoring of waste materials.

2. Substitution: this refers to the hazard control which involves the measure of replacing one hazardous agent or work process with less dangerous one.

3. Personal hygiene practices: a very important method of controlling hazards which involves proper washing of your hair, skin, body and even your clothes.

4. Emergency preparedness: this refers to the preparedness for the first and immediate response in case of any type of emergency.

5. Elimination: this hazard control refers to the removal of a specific hazard or hazardous work process.

6. Flammability limit: is the term used to call the range of concentration over which a flammable vapor mixed with air will flash or explode if an ignition is present.

7. Occupational safety and health (OSH): a cross-disciplinary area concerned with protecting the safety, health and welfare of people engaged in work or employment.

8. Engineering controls: the term used in hazard control which involves changing a piece of machinery or work process.

9. Personal protective equipment (PPE): the term used to call any piece of equipment which is used to protect the different parts of the body such as ears and eyes such as respirators, face mask, face shield, gloves, boots, etcetera.

10. Administrative controls: this is a form of hazard control which involves manipulation of worker/employee’s schedule and job rotation.

7 0

3 years ago

The contrast ratio of blue 80 text on a yellow-10 background is __ to 1.

Natalija [7]

Answer:

The Answer is 8...

Explanation:

8 0

3 years ago