Technician A says that weld-on dent removal attachments may be used on a steel panel. Technician b says that glue on dent removal attachments may be used on a steel panel. The Technician that is right is Technician A.
What is Dent Removal?Paintless dent repair, also known as paintless dent removal, is a process of eliminating tiny dents from a vehicle's body.
As long as the paint surface is intact, paintless dent repair may fix a wide spectrum of damage. Both aluminum and steel panels can benefit from paintless dent repair.
The two most frequent paintless dent removal procedures are (1) utilizing metal rods to alter the panel and (2) pulling. The PDR professional repairs the damage with specialized equipment by gently rubbing the dent out from beneath the panel.
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Full Question:
Technician A says that weld-on dent removal attachments may be used on a steel panel. technician B says that glue on dent removal attachments may be used on a steel panel. Who is right?
A piece of iron of specific heat capacity 0.04 Jkg ¹K and mass 400 kg, is quickly
dropped into 30 kg of water at 10 °C contained in a calorimeter of 120 kg and specific
heat capacity of 0.1 Jkg¹K. If the temperature of the mixture is 30 °C, calculate the
initial temperature of the hot iron (4200 Jkg ¹K¹ = specific heat capacity of water)
(4 marks)
The hot iron's initial temperature is 157545°C.
What is iron?
Iron has the atomic number 26 and the chemical symbol Fe. It is a metal from the first transition series and group 8 of the periodic table.
Given mass of the iron mi = 400 kg
Specific heat capacity of iron Ci; = 0.04 Jkg⁻¹k⁻¹
Mass of water Mw = 30 kg
Specific heat capacity of water C w = 4200 Jkg⁻¹ k⁻¹
Temperature of water Tw = 10°c
Mass of Calorimeter Mc = 120 kg
Specific heat capacity of Calorimeter Cc = 0.1 Jkg⁻¹K⁻¹
Final temperature of the mixture of T f = 30°c
Let Ti be the initial temperature of the iron.
We know that, heat lost and heat gained will be equal.
So,
Mc Cc ( T f - 10 ) + Mw C w ( T f - 10 ) + Mi Ci; ( T f - T i ) = 0.
=120 x 0.1 ( T f - 10 )+ 30 x 4200 (T f - 10) + 400 x 0.04 (T f - T i) = 0.
=12Tf - 120 + 126000Tf - 1260000 + 16Tf - 16 T i = 0
= - 16 T i = 1260120 ( 26028 x T f)
T i = 157545°C.
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The gravitational force exerted on a solid object is 5N. When the object is suspended from a spring scale and submerged in water, the scale reads 3.50 N. Find the density of the object.
The density of the object is 3333.33 kg/m³. The density of an object is a measure of how heavy it is for a given size, i.e. the mass of material per unit volume.
What is gravitational force?Gravity, also known as gravitational force, pulls objects with mass toward each other. We frequently consider the force of gravity from Earth. This force is responsible for keeping your body on the ground. Any object with mass, on the other hand, exerts a gravitational force on all other objects with mass.
Calculation of density of object?Density: This can be defined as the ratio of the mass of a body to its volume.
The unit of density is kg/m³.
From Archimedes principle,
R.d = W/U = D/D'
Where R.d = relative density, W = weight of the object in air, u = upthrust in water, D = Density of the object, D' = Density of water.
W/U = D/D'
making D the subject of the equation
D = D'(W/U).......................... Equation 1
Given: W = 5.0 N, U = 5.0 -3.5 = 1.5 N, D' = 1000 kg/m³
U = lost in weight = weight in air - weight in water
Substitute into equation 1
D = 1000(5/1.5)
D = 3333.33 kg/m³
Thus the density of the object = 3333.33 kg/m³
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How does inductive reactance depend on the frequency of the ac voltage source and the rms current through the inductor?.
Briefly explain thermal expansion using the potential energy–versus–interatomic spacing curve.
As the temperature of the material increases, the potential energy of the molecules increases. Thermal expansion occurs due to changes in temperature, and interatomic distances increase as potential energy increases.
What are the uses of Thermal Expansion?Thermal expansion is used in a variety of applications such as rail buckling, engine coolant, mercury thermometers, joint expansion, and others.
It is to be noted that an application of the concept of liquid expansion in everyday life concerns liquid thermometers. As the heat rises, the mercury or alcohol in the thermometer tube moves in only one direction. As the heat decreases, the liquid moves back smoothly.
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4. Your supervisor texts you during the working hours for no reasons. S/he also invited you for a
dinner to discuss your salary increase issue during a weekend. What should be your role based
on the Ontario's Occupational Health and Safety Act ("OHSA") to deal your supervisor? Discuss.
If your supervisor is texting you during work hours for no reason, you should speak to him or her about it. If your supervisor is inviting you to dinner to discuss your salary increase issue, you should tell him or her that you are not comfortable with that and would prefer to discuss it during work hours. Your supervisor's behaviour is inappropriate and violates the Ontario's Occupational Health and Safety Act ("OHSA"). You should discuss the issue with your supervisor and try to resolve the issue. If you are not able to resolve the issue, you can file a complaint with the Ontario Ministry of Labour.
Occupational Safety and Health Act:
The Occupational Safety and Health Act of 1970 is a United States labour legislation that governs federal occupational health and safety law in the private sector and federal government. Congress passed it in 1970, and President Richard Nixon signed it on December 29, 1970.
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list any four styles of lettering
Answer:I know more than 4
Explanation:
Traditional calligraphy. Calligraphy is the design and creation of hand lettering with a brush or other writing tool. ...
Gothic lettering. ...
Modern calligraphy. ...
Serif lettering. ...
Sans serif lettering. ...
New lettering styles.
An engine has a piston with a surface area of 12.56 in2 and can travel 3.48 inches. What is the potential change in volume of the cylinder, given that ΔV = area × length?
The potential change in volume of a cylinder is equal to 43.7088 cubic inches.
How to calculate the volume of a cylinder?Mathematically, the volume of a cylinder can be calculated by using this formula:
V = πr²h
Where:
V represents the volume of a cylinder.r represents the radius of a cylinder.h represents the height of a cylinder.Additionally, the potential change in volume of a cylinder can be calculated by using this formula:
ΔV = area × length
Given the following data:
Surface area = 12.56 in²Length = 3.48 inches.Substituting the given parameters into the formula, we have;
ΔV = 12.56 × 3.48
Change in volume, ΔV = 43.7088 cubic inches.
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When developing the light bulb, thomas edison’s lab went through numerous materials until they found one that would work. Which one finally worked?.
Platinum filament.
Thomas Edison went through a series of different experiments while developing bulb until and unless the electricity passed through the Platinum filament, and it finally worked.
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HELP ME PLEASE !!!!!!
Answer:
what are u needing help with
Explanation:
all u should do is follow the instructions
what does '' emerging'' mean, emerging technologies and how are they found?
Answer:
The term commonly refers to technologies that are currently developing, or that are expected to be available within the next five to ten years, and is usually reserved for technologies that are creating, or are expected to create, significant social or economic effects.
The result is the delineation of five key attributes that qualify a technology as emerging. These are: (i) radical novelty, (ii) relatively fast growth, (iii) coherence, (iv) prominent impact, and (v) uncertainty and ambiguity.
What is defining feature of the meta verse?
The defining feature of the Metaverse is that it is Virtual. This is its a most distinctive feature. See further details below.
What more do we know about the Metaverse?The Metaverse does not compete with the internet; rather, it expands upon it.
Users navigate a virtual environment that duplicates features of the actual world utilizing technologies such as virtual reality (VR), augmented reality, artificial intelligence (AI), social media, and digital money in the metaverse.
Metaverse features include digital avatars, remote working, developing decentralization, hardware, encryption, and many more.
Similarly, virtual places like Zoom only allow for a single conversation. Participants at physical events can transition seamlessly from one talk to the next. Some colleges are utilizing metaverse technology to bypass internet and video meeting tool constraints.
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Technician A says that water fade changes the coefficient of friction between the brake linings and drums until they dry out. Technician B says that hydraulic fade is caused by brake caliper seals leaking fluid onto the rotors. Who is correct?
According to the given question, technician A is correct.
Who are technicians?
A technician is a worker in a technological field who is skilled in the relevant skill and technique and has a practical understanding of the theoretical principles. Technicians are highly skilled professionals who work in nearly every industry. They service, repair, install, and replace various systems and equipment. Technicians typically work in teams with other skilled workers and must be able to read and communicate effectively.
Water fade occurs as a result of water-soaked brake linings acting as a lubricant, lowering the coefficient of friction between the braking surfaces. And technician A says that water fade changes the coefficient of friction between the brake linings and drums until they dry out.
So technician A is correct.
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(12 points) a heat exchanger is designed to cool 120 kg/min of water vapor at 2 bar and 400 oc to a saturated liquid at 100 kpa. the cooling water is taken from a local river at an inlet at 5 oc. after passing through a condenser, the temperature of the cooling water is not allowed to exceed 20 oc as regulated by the environmental codes. please determine the minimum mass flow rate of cooling water.
The minimum mass flow rate of cooling water is 66.22 kg/sec.
What is mass?
The quantity of matter in a physical body is defined as mass. It also represents the body's inertia, or resistance to acceleration whenever a net force is applied. The mass of an object dictates the strength of its gravitational attraction to certain other bodies. The kilogramme is the SI base unit of mass.
At 2bar 400° c
Specific enthalpy h₁=3276.88 k3/kg.
At 100Kpa
Saturated liquid h₂= 504.684
ΔT= 20° c
Energy balance,
AT=201 (cooly water)
Heat loss by vapour = Heat gain by water
120/60 (3276.98-504.684) = mw X4.186 (20)
mw= 66.22 kg/sec.
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Limitations of Wheatstonestone Bridge methode in measurements
Answer:
For high resistance measurement, the measurement presented by the bridge is so large that the galvanometer is insensitive to imbalance. The other drawback is the resistance change due to the current's heating effect through the resistance.
Explanation:
In developing engine designs, manufacturers use thermocouples to measure the ___________ of components, such as spark plugs and exhaust systems.
Answer: High temperatures
The point in an electrical circuit schematic where high
voltage is stepped down to low voltage is at what
component?
Select one:
O A. Contactor
O B. Solenoid
O C. Relay
O D. Transformer
The point in an electrical circuit schematic where high voltage is stepped down to low voltage is at transformer.
What do you mean by an electric circuit?
Path for transmitting electric current in an electric circuit. An electric circuit consists of a device that provides energy to the charged particles that make up current, such as a battery or a generator, as well as devices that use current, such as lamps, electric motors, or computers, and the connecting wires or transmission lines. Ohm's law and Kirchhoff's rules are two fundamental laws that quantitatively define the behaviour of electric circuits.
Step-down transformers are used to connect transmission lines with varying voltage levels. They reduce the voltage level from a high to a low value.
So, D is the right answer.
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A(n) ____ is used on reservoirs to allow the tank to take in or release air as the fluid level changes during system operation.
A(n) breather vent is used on reservoirs to allow the tank to take in or release air as the fluid level changes during system operation.
Answer:
Vent / Breather Vent
what is dbr in om???
The debt-burden ratio (DBR), which includes loan and credit card payments, is the ratio of your total monthly expenses to your gross income.
How is DBR determined?Your debt-burden ratio (DBR), which includes payments for loans and credit cards, is the proportion of your total monthly expenses to your gross income. Banks use this figure to determine your eligibility for loans and credit cards because it reflects your present debts and repayment capacity.While dBm expresses the absolute power level, dB quantifies the ratio between two values. dBm is a dimensionless unit, whereas dB is an absolute unit. While dB is represented in watts and can be relative to various powers, dBm is always relative to 1mW.Your debt-burden ratio (DBR), which includes payments for loans and credit cards, is the proportion of your total monthly expenses to your gross income. Banks use this figure to determine your eligibility for loans and credit cards because it reflects your present debts and repayment capacity.DBR scheduling assists custom manufacturers by locating the resource in a shop that is causing delays, and then builds a plan around that resource to improve the efficiency and performance of the entire shop.To Learn more About dBr, Refer:
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The manager of a small post office is concerned that the growing...
The manager of a small post office is concerned that the growing township is overloading the one-window service being offered. Sample data are collected on 100 individuals who arrive for service:
TIME BETWEEN
ARRIVALS (MINUTES) FREQUENCY
1 5
2 32
3 35
4 19
5 9
100
SERVICE TIME
(MINUTES) FREQUENCY
1.0 12
1.5 21
2.0 36
2.5 19
3.0 7
3.5 5
100
Using the following random number sequence, simulate six arrivals (Hint: Use random number set from 00 to 99.)
RN: 93, 5, 53, 20, 10, 45, 67, 55, 92, 75, 41, 46, 58, 82, 20, 97, 13, 36
a. Average customer waiting time, in minutes (Round your answer to 4 decimal places.)
Average customer waiting time minutes
b. Average percent idle time for clerks.
Average percent idle time
Answer:
its b
Explanation:
Often, landowners along eroding beaches will build groins, which are walls or dams sticking out into the ocean or lake from the beach. Why are these built, and what happens?.
The landowners are trying to catch sediment from the longshore drift to add to the beach; this can work, but often erosion on the "downstream" side of the groin makes the neighbors mad.
Examination of the timing diagram of the 8237A indicates that once a block transfer begins, it takes three bus clock cycles per DMA cycle. During the DMA cycle, the 8237A transfers one byte of information between memory and I/O device. a. Suppose we clock the 8237A at a rate of 5 MHz. How long does it take to transfer one byte?
The time that it takes to transfer one byte is 1 microseconds.
What is a byte?A byte is a unit of data that is eight binary digits long in most computer systems. Most computers use a byte to represent a character such as a letter, integer, or typographic sign. Each byte can store a string of bits that must be combined to form a larger unit for application purposes.
A stream of bits, for example, can be used to create a visual image for a program that displays images. A string of bits that constitutes the machine code of a computer program is another example.
Four bytes constitute a word in some computer systems, a unit that a computer processor can be built to handle efficiently as it reads and processes each instruction. Some computer processors can handle two-byte or single-byte instructions, depending on their capabilities.
It's important to note that 10 bytes per microsecond equals 10 bytes per microsecond. Therefore, 1 byte will be in 1 microsecond.
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Question 2
Salt in crude oil must be removed before the oil undergoes processi
fed to a washing unit where fresh water fed to the unit mixes with t
the sal contained in the oil. The oil (containing salt but no water), be
can be removed at the top of the washer. If the "spent" wash water
oil contains 5% salt, determine the concentration of the salt in the w
crude oil (with salt) to water used is 4:1.
The concentration of the salt in the w crude oil (with salt) to water used is 4:1 is 0.0061.
What is crude oil?
Crude oil is a hydrocarbon mixture that exists in liquid form in natural subterranean reservoirs and stays liquid at atmospheric pressure after passing through surface separation facilities.
The salt content of "spent" wash water is 15%.
5% of crude oil is salt.
The crude oil (with salt) to water ratio utilised is 4: 1.
Crude oil fraction:
95% of crude oil = 0.95
0.95F1 = x1E1
0.95(100) = x1E1
95= x1E1
E1 = 95/X1
wash water fraction:
15% of wash water = 100% -15% = 85%
= F2 = 0.85E2
salts fraction:
0.05F1 = (1-X1)E1 + 0.15E2
0.05F1 = (1-X)95/X1 + 0.15(F2/0.85)
0.05F1 = 95/X1 - 95 + 0.15(F2/0.85) (SINCE = 95.588 = 95/X1 = 99.38)
0.05(100) = 95/X1 - 95 + 17.61(1/4F1)
5 = 95/X1 - 95 + 4.41
Fraction of salts = 1- X1 = 0.0061
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19. A hole is at LMC when the diameter is at the
A. minimum allowable tolerance.
B. maximum allowable tolerance.
O C. feature size tolerance.
O D. tolerance zone.
How did inventors like lee deforest and edwin howard armstrong fund their initial research and development ventures into radio technologies?.
Inventors such as Lee Deforest and Edwin Howard Armstrong fund their initial R&D ventures into radio technologies. Marconi was funded by the government (England = public mandate (taxes)).
What is radio technologies?Radio technology is the transmission and reception of communication signals that are made up of electromagnetic waves that bounce off the ionosphere or a communications satellite or travel in a straight line through the air.Lee de Forest, who lived from 1873 to 1961 and was known as the "Father of Radio," invented the "Audion" tube. Armstrong's most notable achievement during this period was the development of a "supersonic heterodyne" radio receiver circuit, later abbreviated to "superheterodyne." This circuit, which is still widely used today, improved radio receiver sensitivity and selectivity.To learn more about Radio technology, refer to:
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position for an electron is 4.7i - 4.1j + 5.7k find the magnitude
Answer:
for the magnitude we use Pythagoras (with the components) to get: ∣∣∣→A−→B∣∣∣=√(−1)2+(5)2=√1+25=√26≈5.1
Technician A says that all-wheel drive vehicles are the same as four-wheel drive vehicles. Technician B says that front-wheel drive drivetrains are the most common on cars today. Who is correct?
According to the question, Technician B is correct because he said that front-wheel drive drivetrains are the most common on cars today.
What is the responsibility of the technician?The responsibility of the technician includes analysis and service of the system, diagnosing the actual problems, performing troubleshooting, testing and running of equipment, repairing or replacing faulty or damaged equipment, etc.
According to the context of this question, technician A conveyed that all-wheel drive vehicles are the same as four-wheel drive vehicles. This is actually not accurate and valid. This is because all-wheel drive vehicles are not the same as four-wheel drive vehicles. It significantly depends on the circumference of the wheel.
Therefore, technician B is correct because he said that front-wheel drive drivetrains are the most common on cars today.
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how is the efficiency of cooling equipment measured? is using integrated part load values a good way to define the efficiency of large cooling equipment ? why or why not
The EER is a metric for how effectively an air conditioning system can cool a space per unit of power used. It is computed by dividing the amount of cooling capacity an AC delivers per hour by the watts of electricity used.
To determine an air conditioner's EER, measurements taken on the warmest day of the year are often used. EER, in its simplest form, aims to provide consumers with a sense of the cooling power they may anticipate from an AC for every dollar spent on electricity.
Ratio of Seasonal Energy Efficiency (SEER)
SEER provides the average efficiency for the entire season, making it a more dependable efficiency rating for air conditioners than EER, which only assesses the energy efficiency of the AC on the hottest day of the season. It is calculated by dividing the AC's output power (measured in BTUs) over the course of a season by the total energy the machine used during that same period.
Developed by the EPA, this efficiency rating is well-known. The performance and energy efficiency of HVAC systems with the Energy Star rating are often tested to see if they can provide consumers with excellent value while helping to reduce national energy consumption. Although some gadgets cost a little bit more than their less efficient equivalents, the price difference can easily be made up for in energy savings over time.
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the highway department is to design a roadway over a swamp area. the swamp consists of very soft fine-grained soils obviously saturated. the basic idea is to build a relatively small embankment above the flood level. how would you propose to build the embankment, fast, slow, or in stages? explain.
I'd like to propose that the embankment be built in stages. Because of the possibility of abrupt coloase of structure in swampy places. Soil carrying capacity is extremely low in those places. You must first densify the soil and make it acceptable using various procedures such as grouting, vibrification, restricting, and so on. These types of jobs are critical during the earliest stages of embankment development. After that, we can begin our construction work.
What is soil?
Soil, often known as earth or soil, is a complex mixture of organic matter, minerals, gases, liquids, and creatures that support life. Some scientific definitions distinguish dirt from soil by limiting the former term to displaced soil only. Soil is made up of two phases: a solid phase of minerals and organic matter and a porous phase that retains gases and water. As a result, soil is a three-state system composed of solids, liquids, and gases. Soil is the result of various elements interacting throughout time, including climate, relief, creatures, and the parent components of the soil.
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The potential energy of a roller coaster is 50 joules. The kinetic energy of the same coaster is 50 joules. What is the mechanical energy of the coaster?.
The mechanical energy of the coaster is 100 Joules.
What is mechanical energy?
Mechanical energy is equal to the sum of potential and kinetic energy. The principle of mechanical energy conservation asserts that if an isolated system is subjected to solely conservative forces, the mechanical energy is constant. If an object moves in the opposite direction of a conservative net force, its potential energy increases; and if the item's speed (not velocity) changes, so does its kinetic energy.
Substituting the given parameters into the formula, we have;
Potential energy of roller coaster = 50 Joules.
Kinetic energy of roller coaster = 50 Joules.
So,
M.E= 50+50
Mechanical energy (M.E) = 100 Joules.
Therefore, the mechanical energy of the roller coaster is 100 Joules.
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A secondary needle will not be on an indicator with which kind of measurement scale?
Long range
O Short range
Full
Balanced
Answer:
The correct answer would be interval in short range
Explanation: