Answer:
because it's usually large variation of indicated speed
What uses a high voltage/low current/high hertz arc to start and
stabilize the welding arc?
High frequency
Lift arc
Scratch start
Low frequency
High frequency is a high voltage, low current, and high hertz arc to start and stabilize the welding arc, hence option A is correct.
What is a high frequency arc welding?The process of connecting materials using a high frequency (HF) electromagnetic field (27.12 MHz) and pressure is known as high frequency (HF) or radio frequency (RF) welding.
The user can place the tungsten electrode close to the task at hand and spark the arc by just depressing the torch trigger. Professional TIG welding equipment with AC/DC functionality.
The high frequency function is disabled once your arc has begun until you are ready to restart it. With lift start, there is no arc jump between the tip of the tungsten and the metal. You still utilize your trigger or foot pedal.
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A culture of bacteria has an initial population of 94000 bacteria and doubles every 10 hours. Using the formula P t =P 0 ⋅2 d t , where P t is the population after t hours, P 0 is the initial population, t is the time in hours and d is the doubling time, what is the population of bacteria in the culture after 13 hours, to the nearest whole number?
The population is modeled by the exponential equation:
P(x) = 94,000*(2)^(x/10)
And the population after 13 hours is 231,455 bacteria.
What is the population after 13 hours?The population can be modeled with an exponential equation of the form:
P(x) = A*(b)^x
Where A is the initial population, b defines the rate of growth/decay, and x represents the time.
Here the initial population is 94,000 bacteria, and it doubles every 10 hours, then we can write the exponential equation as:
P(x) = 94,000*(2)^(x/10)
Notice that there is a 1/10 factor in the exponent because the doubling thing happens every 10 hours, then the population after 13 hours is:
P(13) =94,000*(2)^(13/10) = 231,455 bacteria.
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Obviously, we can make rockets to go very fast, but what is a reasonable top speed?
Assume that a rocket is fired from rest at a space station in deep space, where gravity is
negligible.
a) If the rocket ejects gas at a relative speed of 2000 [m⁄s
]and you want the rocket’s
speed eventually to be 1 × 10−3c, where c is the speed of light, what fraction of the
initial mass of the rocket and fuel is not fuel?
b) What is this fraction if the final speed is to be 3000 [m⁄s
]?
Answer:u = 0 v = 0.002* 3* 10^8 = 6* 10^5 m/s mo = initia
Explanation:
Please helpppp this is do today
Answer:
1. professor Reagan
2. we can grow out of the deficit.
3. economic growth reduces deficit to new low.
4. reduce the need for government-funded
programs such as unemployment insurance.
lmk if it's right.
hope this helps.
What is the most important first step when preparing to do a plastic repair?
Answer: The first step after identifying the plastic type is to thoroughly clean the entire part, specifically both sides of the repair area. This should be done with hot, soapy water (or a water-based cleaner) and then dried (photo 3). This will remove water-soluble contaminants.
Explanation:
Brainliest pls:)
# 2 Nearly out of five teens have tried alcohol.
-
O a) 1
O b) 2
O c) 4
* Please make a choice.
Answer:
C - 4/5
Explanation:
2 nearly out of five teens have tried alcohol is 40%. Option C
How to determine the valueThe statement "2 out of 5 teens have tried alcohol" can be translated into a mathematical calculation as follows:
Percentage of teens who have tried alcohol = (Number who have tried alcohol / Total number of teens) * 100
Given that "2 out of 5" teens have tried alcohol, this means:
Number who have tried alcohol = 2
Total number of teens = 5
So, the calculation would be:
Percentage = (2 / 5) × 100
= 40%
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The complete question:
2 Nearly out of five teens have tried alcohol.
-
O a) 10%
O b) 2%
O c) 40%
PLEASE HELP!!!! This is do today
A)
According to the cartoon, trickle down economics looks perfect and ideal in theory.According to the cartoon, trickle down economics is problematic and in practice.The author of the cartoon would disagree with the given statement.B)
The graph is analyzing family income growth.The period is 1980-1990.It has 8 income groupsThe last one with 73.9%It means that those in that class are in debt.What is trickle down economics?Trickle-down economics is an economic theory that suggests tax cuts and benefits for the wealthy and businesses will trickle down to the rest of society, creating economic growth for all.
Trickle-down economics remains a topic of debate today. Some argue that it leads to economic growth and job creation, while others criticize it for exacerbating income inequality and benefiting the wealthy at the expense of the middle and lower classes.
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What is the first step in the process of creating a mind map?
A. create subtopics
B. vary colors within the mind map
C. create a drawing as the central idea
D. draw lines to connect subtopics to the central idea
PLEASE HELP!!!
Answer:
C. create a drawing as the central idea
Explanation:
you draw the central idea so that you can create subtopics, draw lines to connect subtopics to the central idea, vary colors within the mind map
C. create a drawing as the central idea. This step involves establishing a core concept or main theme in the center of the mind map.
What does the central idea serve as?The central idea serves as the focal point from which subtopics and related ideas will branch out. It provides a visual and conceptual foundation for organizing information and connections.
Once the central idea is established, further steps, such as adding subtopics, drawing lines to connect them, and varying colors, can be taken to expand and enhance the mind map.
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how do you ger to stratford on the elizabeth line
What feature of a thread is checked with a thread micrometer?
Crest radius
Root radius
Major diameter Pitch diameter
Minor diameter
The feature of a thread is checked with a thread micrometer are:
Major diameter
Pitch diameter
Minor diameter
What is the thread?A thread micrometer is a specialized measuring instrument used to measure the major diameter, minor diameter, and pitch diameter of external threads. The major diameter is the largest diameter of the thread, while the minor diameter is the smallest diameter of the thread. The pitch diameter is the diameter at which the width of the thread and the width of the space between the threads are equal.
The crest radius and root radius of a thread are not typically checked with a thread micrometer. These measurements are instead checked using specialized measuring instruments known as thread profile gauges, which are designed to measure the shape and size of the thread's crest and root.
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What was the first gaming computer ever made?
Answer:
The Nimrod
Explanation:
History. The Nimrod, designed by John Makepeace Bennett, built by Raymond Stuart-Williams and exhibited in the 1951 Festival of Britain, is considered to be the first gaming computer to ever be conceived.
Answer:
The nimrod.
Explanation:
The Nimrod
The Nimrod, designed by John Makepeace Bennett, built by Raymond Stuart-Williams and exhibited in the 1951 Festival of Britain, is considered to be the first gaming computer to ever be conceived.
2. What are the three types of engineering drawings?
Answer:
isometric, dimetric and trimetric
While replacing a leaking steel brake line, a leak develops at the rear brake hose connection. Which of these should the technician do next?
complete the replacement process and then change the rear brake hose connection