3. Briefly explain the conduction mechanism in metals?
Answer:
conduction occurs when a substance is heated
Explanation:
In order for communication to be considered two-way, _________ is necessary a. channel b. message c. noise d. feedback e. circuit
Answer:
the answer c or e or do wha t the first guy do
In what way is a parallel circuit different from a series circuit?
An undeformed specimen of some alloy has an average grain diameter of 0.040 mm. You are asked to reduce its average grain diameter to 0.010 mm. Is this possible
Answer:
Yes it is possible. Grain size is often determined by the rate so Firstly reduce the average grain diameter of an undeformed alloy specimen form 0.040 mm to 0.10mm
Select the correct answer. Which of the following devices is a simple machine? A.
an engine
B.
a pulley
C.
a motor
D.
a bicycle
E.
a crane
Answer:
A Pulley would be a simple machine.
Explanation:
A pulley has only has one kind of movement
Answer:
a pulley
Explanation:
letter B.
Compute the theoretical density of diamond given that the C-C distance and bond angle are 0.154 nm and 109.5o, respectively. The atomic weight of carbon is 12.01 g/mol.
The theoretical density of diamond given that the C-C distance and bond angle are 0.154 nm and 109.5° respectively is; 3.54 g/cm³
What is the Theoretical Density?
The first thing we will do is to get the unit cell edge length from the given C - C distance.
From the structure of diamond;
Φ = ¹/₂ * bond angle
Φ = ¹/₂ * 109.5°
Φ = 54.75°
Thus;
θ = 90° - 54.75°
θ = 35.25°
Let the height from a point to the base of the cube of the structure be x. Thus;
x = a/4 = y sin θ
where a is unit cell edge length and y is C -C length. Thus;
a = 4y sin θ
a = 4 * (0.154 * 10⁻⁹) * sin 35.25°
a = 3.56 * 10⁻⁸ cm
The unit cell volume is;
V_c = a³
Thus; V_c = (3.56 * 10⁻⁸)³
V_c = 4.51 * 10⁻²³ cm³
Now, there are 8 equivalent atoms per unit cell and as such density is calculated from;
ρ = (n * A_c)/(V_c * N_a)
A_c is atomic weight of diamond = 12.01 g/mol
N_a is avogadro's number = 6.022 * 10²² atoms/g
Thus;
ρ = (8 * 12.01)/(4.51 * 10⁻²³ * 6.022 * 10²²)
ρ = 3.54 g/cm³
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What is in a catalytic converter that makes it so expensive?.
Answer:
A catalytic converter is expensive because it needs rhodium to reduce smog levels. Rhodium, at its current value, is extremely expensive which makes using it in a catalytic converter expensive. To make up for their cost, manufacturers have to increase the price of the catalytic converter.
Explanation:
Which sentence from the passage uses passive voice?
Question 9 options:
a)
E-books also make reading easier for people with disabilities. (paragraph 12)
b)
M.K. sees it another way. (paragraph 16)
c)
In one year, e-reader production released 2350 million kilograms of carbon dioxide into the atmosphere. (paragraph 8)
d)
The Diamond Sutra was printed in China in 868 AD. (p
Answer:
"The Diamond Sutra was printed in China in 868 AD." (paragraph 4)
Explanation:
I took the test
Three rolling cylinders are connected with a pure rolling contact with a speed ratio of 3 in cylinder 1 and 2, if the center distance of the cylinder 1&2 and cylinder 2&3 are 16inches & 18 respectively. Calculate the diameter and mm of each cylinder. If the velocity is 20m/s.
Which of these processes uses a die and a press to form parts?
A) Stamping
B) Tailor-rolling
C) Hydroforming
D) Tailor-welding
The process of die forming that uses a die and a press to form parts from the given processes is called; C: Hydroforming
What are some of the steps in the die forming operations?
There are different types of die forming in sheet metal operations. Now, Hydroforming is a specialized type of die forming that uses a high pressure hydraulic fluid to press room temperature working material into a die.
Tailor Welding is a process of making welded blanks made from individual sheets of steel of different thickness, strength and even coating that are joined together by the use of laser welding.
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A coastal engineer is to an oil platform as a structural engineer is to:
a freeway.
a skyscraper.
submarine pipelines.
an underground tunnel.
Answer:
I think the answer is d: underground tunnel
Explanation:
Hope this helps
6.
How has technology has allowed humans to thrive?
by playing an important role in evolution
by creating tools that make human life easier
by changing the structure of the human body
by inspiring healthy competition among people
With direct fuel injection the gasoline is injected:
Answer:
Gasoline is injected directly into the cylinder.
Explanation:
In a direct injection system, the air and gasoline are not pre-mixed. Rather, air comes in using the intake manifold, while the gasoline is injected directly into the cylinder.
Pleas help. The dimensions of this figure are changed so that the new surface area is exactly 12 what it was originally. What is the new surface area? Enter your answer as a decimal in the box. Answer. Yd²
Please explain the term ‘causal link’. What is the importance of the causal link
in work accidents? What kind of situations breaks the causal link? Explain all
situations with examples.
Answer:
:)
Explanation:
The correlation between a factor and an outcome could be a coincidence, or it could be caused by a completely different factor. For example, as ice cream sales increase, sales of meat for barbecues also increase.
What is the main purpose of the alternater
Answer:
to keep the battery charged when the vehicle is running, it also helps the battery keep the electrical components in your vehicle charged
Explanation:
Is differential analyzer a digital or Analog computer
What is the biggest poop table ever recorded
Answer:
The giant pool table is 30 feet long and uses 6lb bowling balls. Most people would rather have a swimming pool in their back garden than an actual pool table. But this is the enormous billiards table, believed to be the largest in world, that an American man built in his yard
Explanation:
find the position of center of gravity of unequal angle section 10cmby 16cm by 2cm
Answer:160
Explanation:
multiply them all together divide by 1/2
Advantage and disadvantages of Bessemer process of steel making
Advantages:
- allowed steel to be produced without fuel
- using the impurities of the iron to create the necessary heat
- reduced the costs of steel production
Disadvantages:
- could convert only a pig iron low in phosphorus and sulfur
- these elements could have been removed by adding a basic flux such as lime, but the basic sl*g produced would have degraded the acidic refractory lining of Bessemer's converter.
au revoir mon amour <3
Which of the following is NOT one of the 3 technology bets we have made?
Artificial intelligence
Data analytics
Design Thinking
Digital core
The one that is not an option of the 3 technology bets made are Digital core and Design Thinking.
What are the 3 technology bets Genpact produced?The digital technologies made are known to be able to create value through the accelerating processes and also by automating them.
The technology bets Genpact are:
Artificial Intelligence.Augmented Intelligence.Customer Experience.Digital Transformation and AI Consulting.Intelligent Automation.Learn more about technology from
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A textile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0. 5 kilograms. The company wishes to test the hypothesis H0:μ=12 against H1:μ<12 using a random sample of n=4 specimens. Calculate the P-value if the observed statistic is x⎯⎯=11. 25. Suppose that the distribution of the sample mean is approximately normal. Round your final answer to five decimal places (e. G. 98. 76543). Enter your answer in accordance to the question statement
Answer:
The p-value of the hypothsis 0.00135
Explanation:
what causes your car to eventually slow down and stop when you take your foot off the gas pedal
A blue and a yellow cubes are rolled- What is the probability that a yellow cube is a multiple of 3 and the product is 6?
Answer:
2/6 cause there is 2 ways to get 6, 6 × 1 and 3×2 and 6 and 3 are multiples of 3
Tech A says that a parasitic draw is measured in volts. Tech B says that pulling fuses one at a time can help locate a parasitic draw. Who is correct
Answer:
Tech B
Explanation:
Equipment consisting of busbars mounted inside an enclosure that provides a means of tapping the service-entrance conductors is called a
Answer:
busway
Explanation:
Technician A says that the cylinders should be bored and/or honed to match the size of the pistons to be used. Technician B says that bolt holes should be chamfered and cleaned with a thread chaser before assembly. Who is right
Answer:Both Technician A and Technician B are right.
Explanation: The cracks in an engine can be detected when the engines are thoroughly cleaned because the transmission vent is basically designed to vent hot air.
Also pressure testing can equally detect cracks easily. When you increase the pressure,you will notice leaks from the blocks or cylinder indicating a crack on them.
The basic building block of digital technology is the
Select one:
a. flip-flop
b. binary adder
c. gate
d. truth table
The basic building block of digital technology is the gate (Option c). It makes reference to logic gates.
What are logic gates?A logic gate is a computer model that uses logical mathematical equations based on Boolean function.
A logic gate can be considered as a unit block for all used types of digital devices and/or circuits.
Digital technologies use logic gates that allow them to perform different functions (digital functions).
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Select three jobs that ſvould be undertaken by someone just starting his or her career as an environmental
engineer.
designing a renewable water system in a remote area
designing a bridge that will cross a major river
designing a building that can withstand a massive earthquake
designing a car that emits less carbon emissions than previously designed automobiles
designing a greenhouse to reduce pollution and provide food
Answer:
1 and 2 and 3
Explanation:
New tie rod ends are being installed. Technician A says it is a good idea to replace the cotter pin. Technician B says to tighten the retaining nut to the low side of the torque spec then further tighten to align the cotter key hole. Which technician is correct
Answer:
technician b?
Explanation: