A river water supply is treated by the sequence of the unit operations and chemicals listed below. State the purpose or purposes for each unit process and chemical application in a few words.
(a) Pre-sedimentation with polymer application
(b) Mixing and flocculation with additions of alum and polymer
(c) Addition of activated carbon
(d) Sedimentation
(e) Granular-media filtration
(f) Post chlorination
Note that where a river water supply is treated by the sequence of the unit operations and chemicals listed above, the purpose or purposes for each unit process and chemical application are:
(a) Pre-sedimentation with polymer application: Removes large particles
(b) Mixing and flocculation with additions of alum and polymer: Coagulate and settle particles
(c) Addition of activated carbon: Remove dissolved impurities
(d) Sedimentation: Settles particles
(e) Granular-media filtration: Removes small particles
(f) Post chlorination: Kills bacteria, and adds chlorine for disinfection.
Note that the above process is called Water Treatment.
What is Water treatment and why is it important?The method described above is known as water treatment or sewage treatment.
It is a set of physical, chemical, and biological techniques used to purify water and make it suitable for human consumption or use in industrial operations. Depending on the source and kind of water being treated, this process or technology is also known as wastewater treatment.
Learn more about Water treatment:
https://brainly.com/question/1414153
#SPJ1
Calculate v and ix in the circuit of Fig. 2.79.
The expression for the voltage across the resistor is v=6V and I^ x=-4A
Step by step explanation:
The current in the loops are, I^ 1 in loop 1 and I^2 in loop 2
Apply Kirchhoff's voltage law to loop 1.
10=12i^ 1 +4
10-4=12i^ 1
12i^ 1=6
I^ 1 = 6/12=0.5 A
Write the expression for the voltage across the resistor:
V=12I^ 1
=12(0.5)
v=6V
Apply KVL in loop 2:
3i^ x+16=4
3i^ x=-12
I^ x=-12/3
I^ x=-4A
Kirchhoff's Voltage Law describes the distribution of electrical voltage within an electrical circuit's loop, or closed conducting path. According to Kirchhoff's Voltage Law.
Any loop's algebraic sum of voltage (potential) differences must equal zero.
To learn more about Kirchhoff's Voltage Law:
https://brainly.com/question/29831050
#SPJ4
The repair order must detail why the vehicle is in for repairs or what the customer is complaining about. What’s this known as on the repair order?
The repair order must detail why the vehicle is in for repairs or what the customer is complaining about. Note that this on the repair order is known as Problem Description.
What is the use of a Repair Order?A repair order is a document used in an automotive repair shop or service center to document the details of a repair job.
It contains information about the vehicle, the customer, the problem or reason for the repair, the work done, and the repair cost. It is used as a record of the work done and for billing and warranty purposes.
Learn more about repair orders:
https://brainly.com/question/7199470
#SPJ1
brainly engineers are tasked with designing a new solar system themed roller coaster ride. the track starts at point p, at the top of a sphere with radius r (representing jupiter). the track goes down to ground level, then to point q, the top of a sphere of radius r (representing neptune) and then back to the ground level.
Brainly engineers are tasked with designing a new solar system-themed roller coaster ride. The track starts at point P, at the top of a sphere with radius r (representing Jupiter).
The track must be designed to ensure that the roller coaster is safe and enjoyable for riders. The engineers must also consider the physics of the ride, such as the forces of gravity and acceleration, to ensure that the ride is safe and enjoyable. Designing a new solar system involves creating a model of the planets, stars, and other celestial bodies that make up our solar system. This includes researching the physical properties of each planet, such as its size, mass, and composition, as well as the forces that act upon it, such as gravity and radiation. It also involves creating a model of the orbits of the planets and other celestial bodies, as well as the forces that act upon them. Finally, it involves creating a model of the interactions between the planets and other celestial bodies, such as the gravitational pull of the sun and the effects of the moon on the tides. Designing a new solar system requires a deep understanding of physics, astronomy, and mathematics.
Learn more about solar system here
https://brainly.com/question/12075871
#SPJ4
A new split system should be checked for leaks by;
A new split system should be checked for leaks by; pressurizing the system with a few ounces of system refrigerant and an inert gas.
What is a split system?A split system is one of the most widely used house air conditioning configurations today. It consists of two units, one inside and one outside. These systems are renowned for being silent and energy-efficient, and they are quite simple to instal as no ducting is needed.
The compressor, propeller fan, circuit board, and heat exchange coil are all located in this area of the air conditioning system. It is outside and moves refrigerant to and from the indoor unit it is paired with.
This component is frequently referred to as a "condenser" or "heat exchanger." the component of an air conditioning system that is housed and delivers the room's "conditioned" air. A heat exchange coil, filters, and a remote signal receiver are included in this unit.
To learn more about split system refer to:
https://brainly.com/question/20597527
#SPJ4
How many radians are in a complete circle of 360 degrees?
Answer:
2 radians
Explanation:
The size of a radian is determined by the requirement that there are 2 radians in a circle. Thus 2 radians equals 360 degrees. This means that 1 radian = 180/ degrees, and 1 degree = /180 radians.
A complete circle in angular measurement is divided into 2*pi radians, which is equal to 360 degrees.
Explanation:A complete circle measures 360 degrees in the English system of measurement. However, when it comes to angular measurement in mathematics, a complete circle is divided into 2*pi radians. Since the circumference of a circle is given by the formula C = 2*pi*r, where r is the radius, the circumference is equal to 360 degrees. Therefore, 2*pi radians is equivalent to 360 degrees.
Learn more about Radians in a complete circle here:https://brainly.com/question/31738224
#SPJ6
member abc, which is supported by a pin and bracket at c and a cable bd, was designed to support the 13-kn load p as shown. knowing that the ultimate load for cable bd is 100 kn, determine the factor of safety with respect to cable failure.
When transverse loadings are applied to a beam or frame, the axial force, normal force, or both may develop as internal forces.
The internal loads that result are c=Nc = -4.32 kip, V c=0.54 kip, and M c=2.16 kip. Ft Solution: The beam ab is supported by a cable BC and a pin at A. 120 I b/ft is the weight of the beam AB. 180 Ib/ft is the weight of the cable BC. Identify the loading at the beam's center AB (P ab). P ab = AB Beam Weight * AB Beam Length. For the weight of beam AB and its length of 12, substitute 120 I b/ft. Convert the unit from I b to kip using P ab=120*12 =1,440 I b. P ab = 1,440 I b*1,44 kip/1,000 I b. When transverse loadings are applied to a beam or frame, the axial force, normal force, or both may develop as internal forces.
Learn more about The internal loads here:
https://brainly.com/question/30187368
#SPJ4
what is meant by the term "high efficiency purge unit
Those purge units which discharge a high percentage of refrigerant with the air which they remove.
what is meant by the term "high efficiency purge unit?The refrigerant may leave the system together with air and moisture while the purge unit is running. The amount of refrigerant removed along with the air by a high-efficiency purge unit is negligible. On the other hand, an ineffective purge unit will continue to leak a significant volume of refrigerant.
The high efficiency purge unit is made up of a self-contained control system, a refrigerant-cooled condenser tank, a magnetic drive oil pump with three-way suction and discharge valves, connecting tubing, strainers, and driers.
The primary goal of the purge system is to keep the refrigeration system free of moisture and non-condensable gases (air). An rise in condensing pressure brought on by the buildup of non-condensable gases within the system lowers operating efficiency.
To learn more about purge unit refer to:
https://brainly.com/question/17438851
#SPJ4
Which part should be tested?
O Flame sensor
O Expansion valve
O Solenoid valve
O Gas valve
Part of the gas valve should be examined. Since they are utilised in various situations, there are several types of gas valves.
Oil and gas flow may be controlled with the use of a gas valve. The volume of liquids and gases permitted to pass through pipes is controlled by opening or shutting an aperture. The valve regulates fluid flow by stopping and beginning, altering quantities, controlling direction, regulating pressure, or releasing pressure.
Environments vary from one another. A few are extremely caustic. While some people work under continual intense pressure. Variations of valves have been created over the years due to these variations. There are benefits and drawbacks to each type of valve. Knowing the various types and purposes within the gas and oil business is necessary for successful operation and application.
Learn more about Gas valve here:
https://brainly.com/question/29426485
#SPJ4
The device shown is used to mix soils in order to provide in-situ stabilization. If the mixer is connected to an A-36 steel tubular shaft that has an inner diameter of 3 in. and an outer diameter of 4.5 in., determine the angle of twist of the shaft at A relative to C if each mixing blade is subjected to the torques shown.
Angle of shaft twist at A with respect to C is equal to (2.12*107) * (/180) = 37,819°.
Regarding soilThe mixture of organic matter, minerals, gases, liquids, and living things that makes up soil—also referred to as earth or dirt—supports life. Some scientific interpretations differentiate between soil and dirt by limiting the former term to only displaced soil. In addition to a highly permeable phase that holds water and gases (the soil environment), soil includes a solid phase made up of minerals and organic matter (the soil composite) (the soil solution). The three states of soil - solids, liquids, and gases. Climate, relief (elevation, direction, and slope of the terrain), organisms, and the soil's parent materials (initial minerals) all play a role in the formation of soil.
To know more about soil visit :
https://brainly.com/question/1218235
#SPJ4
a rotor has been refinished an off-car brake lathe. you should do all of the following except: group of answer choices make sure it has a non-directional finish measure the final thickness wipe it down with oil to prevent it from rusting. wash it with soap and water
A rotor has been refinished on an off-car brake lathe. you should do all of the following except Make sure it has a non-directional finish.
A rotor is a rotating component of a machine, such as an electric motor or a turbine. It is typically made of a metal or composite material and is designed to spin at high speeds. Rotors are used in a variety of applications, such as in electric motors, turbines, and pumps. In electric motors, the rotor is the part that rotates and is connected to the stator, which is the stationary part of the motor. The rotor is typically made up of a series of magnets or coils that interact with the stator to generate a magnetic field. This magnetic field is used to generate torque, which is then used to rotate the rotor. In turbines, the rotor is the part that rotates and is connected to the blades, which are used to convert the energy of the moving fluid into mechanical energy. In pumps, the rotor is the part that rotates and is connected to the impeller, which is used to move fluid. Rotors are also used in measuring devices, such as laser rangefinders, to measure distances.
Learn more about rotor here
https://brainly.com/question/29991125
#SPJ4
a 10-mm-diameter brinell hardness indenter produced an indentation 1.62 mm in diameter in a steel alloy when a load of 500 kg was used. compute the hb of this material.
To compute the HB of this material, you need to use the formula: HB = 2P/(πD^2 – d^2), where P is the applied load, D is the diameter of the indenter, and d is the diameter of the indentation.
Plugging in the values given, we get: HB = (2*500)/(3.14 * (10^2) – 1.62^2) = 403.9. So, the HB of this material is 403.9.
The equation can be rearranged and rewritten as follows:
HB = (2P)/((πD^2)-(d^2))Plugging in the values from the given question, we get:
HB = (2500)/((3.14(10^2))-(1.62^2))Simplifying this equation, we get:
HB = (2*500)/(314 - 2.5924)This simplifies to: HB = 403.9.
Therefore, the HB of the material being tested is 403.9.
Learn more about the HB of this material:
https://brainly.com/question/15258804
#SPJ4
What is the esr in the capacitor.
The esr in the capacitor refers to the value that represent the loss of useful energy in a simple electronic circuit consisting of a resistor
What is esr?Equivalent series resistance (ESR), also referred to as internal resistance, is a measurement of the energy lost in a simple electronic circuit made up of a resistor and a perfect (ideal) capacitor. Technically, the energy is not lost; instead, it typically dissipates as unwanted heat.
High frequency noise crosses the capacitor more frequently at the input as the ESR rises, reducing the efficiency of the filter. Higher ESR at the output results in more ripple, which affects the stability of the control loop. ESR is crucial in applications that use high-frequency, low-duty-cycle current pulses.
Learn more about capacitor on:
https://brainly.com/question/27393410
#SPJ1
The boom AC is supported at A by a ball and socket joint and by two cables BDC and CE. Cable BDC is continuous and passes over a pulley at D. Calculate the tension in the cables and the x,y,z components of the reaction at A if the crate has a weight of 80 lbs.
T is equal to W / (2*sin()), where W is the boom's AC weight (80 lbs. ), and is the angle made by the cables BDC and CE. Rz = W/2, Rx = T*cos(), Ry = T*sin().
How do pulleys work?A disk on an axle or shaft known as a pulley is used to transfer power from the shaft to the cable or belt or to sustain motion and direction change of a full line or belt. The supporting shell was known as a block, and the pulley may also be referred to as a sheave or a pulleys wheel if it is sustained by a frame or shell but does not transmit power to a shaft.
What are 2 facts about pulleys?Heavy loads may be moved much more easily with a pulley. A single pulley only shifts an object's direction. A big load can be raised with less force if two or maybe more pulleys are connected. The end of a rope must travel farther than the load when there are additional pulleys.
To know more about pulley visit :
brainly.com/question/14964376
#SPJ4
Fibonacci Sequence Submit + Continue New + Save Output Test Cases Docs Grade Assignment More Fibonacci.Java =
A Fibonacci series in Java is a sequence of numbers such that every third number is equal to the sum of the previous two numbers.
What is a Fibonacci series in Java?A number is entered into the Java Fibonacci recursion function. Because the Fibonacci sequence in Java begins with 0, 1, 1, the check is made for 0, 1, 2 and the result is 0, 1, 1. The function will call itself again if the argument n is greater than 3. The call is placed twice. Each number in the Fibonacci sequence, where 0 and 1 are the initial two numbers, is the sum of the two numbers that came before it. The first number in the Fibonacci sequence is.It goes from 0 to 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, and so forth. The Financial Chart control from Component One Studio has built-in support for four different Fibonacci tools that can be used on a price or an indicator.To learn more about Fibonacci series refer to:
https://brainly.com/question/18369914
#SPJ4
Which is the most common way to install memory in a laptop
Find the cover for the memory module slot. Insert the module by sliding it. The majority of socket alignments are roughly 30 degrees. Change the memory.
What exactly is memory?Memory is the ability to take in information from the surrounding environment, process it, store it, and then recall it at a later time—sometimes years later. A memory storage system or filing cabinet are frequently used as analogies for human memory.
Why is memory so crucial?Memory is a necessary part of every person's life. We are unable to function with in present or consider the future without a remembrance of the past. We wouldn't be able to recall our actions from the previous day, the present, or the future.
To know more about memory visit:
https://brainly.com/question/11103360
#SPJ1
___a message sent by one device (such as a network interface card) to another device (such as a switch) to check that the link between the two is operating. This signal is sometimes referred to as a heartbeat.
Keepalive a message sent by one device, such as a network interface card, to another device, such as a switch, in order to check that the link between the two devices is operating. This signal is sometimes known as a heartbeat.
Keepalive is a signal transmitted from one device to another device(s) in order to maintain the connection between two or more devices. Keepalive signal thus allows a service to be kept highly available.
Therefore, a keepalive is a message used to check that the link or connection between the two devices is operating as well as to prevent the link from being broken.
You can learn more about netwrok problem at
https://brainly.com/question/29921183
#SPJ4
When jumping a dead battery, which car do you start first?
Remember, when connecting the positive cables to the batteries, you should always start by connecting the dead battery first.
Can I jump a completely dead battery?Although having a dead battery is no one's idea of fun, you can still jump start a car by utilising jumper cables to connect the dead battery to a fully charged one. Connect the red (+) clamp to the dead battery's positive terminal. Next, connect the red (+) clamp to the functional battery's positive terminal. Attach the black (-) clamp to the active battery's negative terminal. Last but not least, fasten the leftover black (-) to a deceased car's unpainted metal surface. To ensure that the battery can continue you charge, make sure to drive your car for roughly 30 minutes before stopping once more. If not, you could require a second jump start.To learn more about dead battery refer to:
https://brainly.com/question/28221662
#SPJ4
The marginal revenue of the second unit of output in Exhibit 9-2 is: a. 20. b. 30. c. 10. d. 40. e. 60.
In Exhibit 9-2, the marginal income for the second unit of output is 10.
What is Revenue?
Revenue in accounting refers to the total sum of money made through the sale of products and services that are essential to the company's core activities. Sales or turnover are other terms used to refer to commercial revenue. Some organizations get money via royalties, interest, or other fees. As in "Last year, Company X had revenue totaling $42 million," the term "revenue" can refer to either income or the sum of money generated during a specific period of time. The general definition of profits or net income is total revenue less total expenses for a specific time period.
To know more about Revenue
https://brainly.com/question/8645356
#SPJ4
Which of the following commands can be used to check if TCP port 80 is open on the remote host 10.0.0.3? O ping O dig O nslookup O telnet
Telnet can be used to check if TCP port 80 is open on the remote host 10.0.0.3 by running the command "telnet 10.0.0.3 80" in the command prompt. If the port is open, you will see a blank screen and be able to type, otherwise you will see a message indicating that the connection could not be established.
What is Telnet?
Telnet is a network protocol that allows users to connect to a remote host and run commands on that host as if they were logged in locally.
Telnet uses a virtual terminal connection to enable communication between the two systems, allowing users to log in to a remote host and run commands, as well as to transfer files.
Telnet is an unencrypted protocol and data is sent in plaintext, which makes it vulnerable to eavesdropping and man-in-the-middle attacks, for this reason it's not recommended to use telnet anymore and replaced with SSH(Secure Shell)
To know more about Telnet, visit: https://brainly.com/question/15060691
#SPJ4
A "wet" combustion test kit measures which two substances?
A. Soot and carbon monoxide
B. Carbon dioxide and oxygen
C. Carbon monoxide and oxygen
D. Carbon monoxide and carbon dioxide
Carbon monoxide and oxygen-Incomplete combustion occurs in a coal-fired unit's furnace when insufficient oxygen (O2) is available during fuel combustion.
What is incomplete combustion of coal?The quantity of O2 available for combustion is known as "excess air." Compared to other fuels, coal needs a disproportionately large amount of extra air to burn completely, quickly, and in the furnace. Incomplete combustion produces soot or carbon monoxide when some of the carbon is not fully oxidised (CO). Complete combustion utilises fuel inefficiently and produces harmful levels of carbon monoxide.Inadequate air-fuel mixing, inadequate residence time, insufficient temperature, and little total extra air are the main causes of incomplete combustion. Solid carbon soot particles produced in the fuel-rich zones of the cylinder during combustion are not present in the exhaust of CI engines.To learn more about combustion refer to:
https://brainly.com/question/17049433
#SPJ4
Calculate I_o In The Circuit Of Fig. 2.91
v=2v and I^ 0=1 A
Explanation:
Apply KCL at node(1)
=V-10/8+V/3+V/6=0
=3v-30+8v+4v/24=0
=15v=30
v=30/15
v=2v.
Therefore:
I^ 0=10-v/8
I^ 0=10-2/8
I^ 0=1 A
A node in a circuit is previously defined as a point where two or more circuit elements are connected together. Kirchoff’s current law (abbreviated "KCL") states that the sum of all currents entering and exiting a node must equal the sum of all currents entering and exiting the node.
In other words, the net current entering (or leaving) any circuit node must be zero. This law is essentially a statement of charge conservation: if the net current entering any node is greater than zero, there will be a net buildup of charge at a point in a circuit over time.
To learn more about ''Kirchoff’s'' current law (KCL)
https://brainly.com/question/16155576
#SPJ4
4.
Describe the correct use of any equipment used to protect the health and safety of themselves and
their colleagues
Items like gloves, safety glasses, shoes, earplugs or muffs, hard helmets, respirators, or coveralls, vests, and full body suits are examples of personal protection equipment.
What equipment is are used for safety and protection?Wearing a safety helmet when using a power tool, donning the proper safety gear when dealing with chemicals, and taking all necessary measures when operating machinery are examples of the proper use of any equipment used to safeguard their health and the health of their coworkers.
Gloves, safety goggles, shoes, earplugs, respirators, hard hats, coveralls, vests, and full body suits are examples of personal protection equipment.
Healthcare Facilities Using PPE:
Gloves safeguard the hands; gowns or aprons defend the skin or clothing; masks and respirators screen the mouth and nose; goggles guard the eyes; and face shields cover the complete face.
To learn more about personal protection equipment refer to:
https://brainly.com/question/13720623
#SPJ1
The attributes of Accounts relation are:
• acctNo
• type
• balance
The attributes of Customers relation are:
• firstName
• lastName
• idNo
• account
The criteria are enumerated, but the most crucial ones are consistency, comparability, reliability, and relevance. Additionally, each of them has a purpose that will have an impact on the accounting data.
Account Attributes are detailed information linked to a record. Each attribute screen offers basic descriptive information about an account, such as the account title, the name of the person who is in charge of it, its function, and the division of the company that uses it. Accounting comprises summarizing, interpreting, and conveying the financial data to the consumers of financial statements in addition to bookkeeping. The primary goal is to keep meticulous records of financial activities. The primary goal is to evaluate the company's financial health and profitability.
Learn more about function here-
https://brainly.com/question/17216645
#SPJ4
Activity 1.2.6 Maximizing Motor Power –VEXIntroductionAn engineer often must design a system to get themost out of limited resources. When designing alaptop or mobile phone, for example, an engineeringteam works to make the battery last as long aspossible. A vibrating cell phone uses a motor with anoff-center load, and it needs to be designed with agear train that delivers the most power or the highestefficiency.These design decisions can be made by making onlyfour measurements of a motor. These fourmeasurements describe the most important propertiesof a particular motor at a given voltage.In this activity you will learn how to make those fourmeasurements. You will also learn how to choose agear ratio to make a motor deliver maximum poweror maximum efficiency for a given task.EquipmentWinch assembly from Activity 1.2.5(2) 1" standoffs(4) 3/8" 8-32 screws(1) 1/2" 8-32 screwDC power supply or two AA batteries andholdersMultimeter
Timing device for timing to 0.01 s precisionVernier force sensor or other device to precisely measure ~5.0 NBreadboardPair of wiresStringClamp
Fast delivery of custom and pre-stocked electronic hardware, fasteners, and related parts is Accurate Screw Machine's area of expertise.
Our quick quotes and extensive production services are well-known. ASM offers quotes with a turnaround, sends stock parts the same day, and delivers custom components in a week. ASM's manufacturing services serve your specific demands, from the prototype of specialized parts to quick delivery. Accurate Screw Machine is an expert in providing high-quality electronic hardware and fasteners exactly in time. For more information about our goods and services, which range from bushings and captive screws to locking fasteners, handles, and washers, browse our catalog.
Learn more about specific here-
https://brainly.com/question/19819958
#SPJ4
Required information A flat quadrilateral plate finite element is shown. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. node 4 node 3 node 1 (20, 20, 12) cm node 2 (25, 40, 7) cm node 3 (0,35, 13) cm node 4 (5, 20, 15) cm r node 1 node 2 Determine the unit vector outward normal direction to the surface (i.e., pointing away from the origin). The unit vector is û = O The unit vector is i O i Oł ).
The surface's unit vector's outward normal direction (i.e., pointing away from the origin). û = O is the unit vector. It is I O I O for the unit vector. is u equal to 0.1924i, 0.1924j, and 0.9622k
20, 22, 12 cm for Node 1.
25,40.7 cm for Node 2.
0.35.1 cm for Node 3
5,20,15 cm for node 4.
Each side's cartesian shape
a = 5i + 20j - 5k
b = -15i + 0j + 3k
c = 5i - 15j + 2k
d = 25i +5j - 6k
The surface's unit vector's outward normal direction is:
c*d/I c*d = u I\s= 80i+80j+400k/415.69
u = 0.1924i + 0.1924j + 0.9622k
A quantity or phenomena with independent directions and magnitudes is called a vector. The phrase also describes how such a quantity is represented mathematically or geometrically.
In nature, vectors may be found in electromagnetic fields, weight, momentum, force, and velocity. The force created when gravity accelerates a mass is known as weight.
Learn more about Vector here:
https://brainly.com/question/21157328
#SPJ4
The distribution of soil loading on the bottom of a building slab is shown.
a) Replace this loading by an equivalent resultant force.
b) Specify its location, measured from point O
The fundamental principle is that two force systems are equal if they produce the same resultant force and resultant moment.
A force can be moved along its line of action to create a new force system that is comparable to the original force system. The Pythagorean theorem is used to calculate the resultant force when two forces are acting perpendicularly to one another. The formula for the resultant force is FR = F1 + F2 + F3. Where. The three forces that are acting on an object in the same direction are F1, F2, and F3. In other words, the forces of action and reaction work in tandem. Therefore, the outcome is zero if action and reaction are applied to the same body.
Learn more about system here-
https://brainly.com/question/27162243
#SPJ4
These types of contaminants can be result from welding, cleaning or painting:
Welding fumes can cause serious health problems for workers if inhaled, according to OSHA.
Is smoke from welding harmful?Short-term exposure may cause nausea, lightheadedness, or irritation of the eyes, nose, and throat. Long-term inhalation of welding fumes can cause renal and nervous system damage as well as lung, throat, and urinary tract cancer. UV radiation and metal fume exposure are two health risks associated with welding, cutting, and brazing procedures. The risks associated with these procedures include burns, eye injury, electrical shock, wounds, and toe and finger crushing. Additionally, welding emits fumes. When heated metal vapours cool and condense into extremely minute particles, which remain suspended in the vapour or the gas, fumes are produced. The particles, which are frequently smaller than one micrometre (one-fiftieth the width of a human hair), may be made of metal or metal compounds.To learn more about harmful refer to:
https://brainly.com/question/17143947
#SPJ4
The roller coaster car having a mass m is released from rest at point A Neglect friction (Figure 1) Part A
It the track is to be designer so that car does not leave it at B determine the required height h Express your answer to three Significant figures and Include the appropriate units. Part B
Find the speed of the car when it roaches point C. Express your answer to three significant figures and include the appropriate units.
The car's speed as it approaches the spot Part B's v = 14.3 m/s and Part A's h = 8.94 metres.
What is speed?
The speed of an object, also known as v in kinematics, is the size of the change in that object's position over time or the size of the change in that object's position per unit of time, making it a scalar quantity. The instantaneous speed is the upper limit of the average speed as the duration of the time interval approaches zero. The average speed of an item in a period of time is the distance travelled by the object divided by the duration of the period. Velocity and speed are not the same thing.
To know more about speed
https://brainly.com/question/28224010
#SPJ4
Shanika is an engineer at an amusement park who is experimenting with changes to the setup for a magnetic roller coaster ride. In one ride, there are two identical roller coaster cars (orange and green) that start on opposite sides of a large magnet located at the center of a station. Shanika wants to get the largest increase in potential energy she can by moving one car one space to the left or the right.
Shanika needs to move the orange coaster car to point B. This movement will result in the greatest potential energy increase.
What is potential energy?Potential energy is stored energy that is influenced by the relative position of various system components. The potential energy of a spring increases when it is compressed or stretched. When a steel ball is raised above ground, it has more potential energy than when it falls to Earth.
In the elevated position, it can do more work. Potential energy is a property of a system, not an individual body or particle; for example, as the Earth and raised ball are separated, the system has more potential energy.
Potential energy exists in systems with parts that exert varying magnitudes of forces on each other based on their configuration, or relative position.
Learn more about Potential energy
https://brainly.com/question/24284560
#SPJ4