Chemicals pose a variety of hazards the six (6) types of health hazards are Corrosives, Irritants, Sensitizers, Carcinogens, Mutagens,Flammable.
How do you become aware of chemical dangers?To become aware of if a substance is dangerous, test the product's box label and/or the SDS that is to be had from the supplier. If a product isn't categorized as a dangerous chemical beneathneath the Work Health and Safety Act 2011, a SDS isn't required and consequently might not be availableIn the workplace, we discover varieties of chemical dangers: fitness dangers and physicochemical dangers.1Asphyxiants.
There are many varieties of dangerous chemicals, such as neurotoxins, immune agents, dermatologic agents, carcinogens, reproductive toxins, systemic toxins, asthmagens, pneumoconiotic agents, and sensitizers.
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5. A 15-nC point charge is at the origin in free space. Calculate V₁ if point P, is located at
P₁(-2,3,-1) and
(a) V0 at (6,5,4).
(b) V-0 at infinity.
(c) V5 V at (2,0,4).
when electric power is transmitted over long distance, line losses can be reduced by generating AC rather than DC voltage and by transmitting?
When electric power is transferred over a long distance then, line loss can be reduced by high voltage and low current. Thus, option A is correct.
What is electric power?The complete question is attached to the image below.
The electric circuit transfers the electric current then it is called electric power. The loss in the line over a larger distance is reduced by transferring AC instead of DC voltage.
The AC transmitted is of high voltage, and the power is low. The equation for current is given,
P = VI
The increase in the voltage causes the decrease in the current and in turn the resistance also reduces resulting in the loss of the power of the circuit to decrease.
Therefore, the loss is reduced by transferring high voltage and, low current AC.
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You will get 50 points after giving proper answer
Answer:
i don't know
please mark me brainlist
A structural member that has a straight longitudinal axis and constant cross section is best described as _______.
Refrigerant 134a passes through a throttle valve as part of a refrigeration cycle. The fluid enters the valve as compressed liquid at a pressure of 0.8 MPa and a temperature of 25 C. It exits the valve at -20 C. Find the exit pressure and the exit specific internal energy.
The exit pressure will be 1.3273 bar = 0.1327 MPa and the exit specific internal energy 228.61 KJ/Kg .
1.) In graph,
1-2 = Compressor
3-4 = Throttle value
[tex]T_{1} \\[/tex] = [tex]T_{4}[/tex] = -20°C = 253 K
[tex]T_{3}[/tex] = 25°C = 298 K
[tex]P_{3}[/tex] = 0.8 MPa
Assuming saturated fluid is entering the value at point (3),
using table of R-134a properties
∵ [tex]h_{3} =h_{4}[/tex] = 234.49 KJ/Kg (at 25°C,8 bar)
at [tex]T_{3}[/tex] = 25° , [tex]P_{3}[/tex] = 0.8 MPa =8 bar
At -20°C, [tex]hf_{4}[/tex] = 173.6 KJ/Kg
[tex]hg_{4}[/tex] = 386.6 KJ/Kg
[tex]h_{4} = hf_{3} + n_{4} ( hg_{4} - hf_{4} )[/tex] = 234.49
173.6 + [tex]n_{4}[/tex] [386.6 - 173.6] = 234.49
[tex]n_{4}[/tex] = 0.285
[tex]P_{4} = P_{1} = P_{sat}[/tex] = 1.3273 bar = 0.1327 MPa
2.)
Exit specific internal energy, using table R-134a
[tex]U_{4} = uf_{4} + n_{4} (ug_{4} - uf_{4} )[/tex]
at -20°c, [tex]uf_{4}\\[/tex] = 173.65, ufg = 192.85 KJ/ Kg
[tex]U_{4}[/tex] = 173.65 + 0.285 (192.85)
[tex]U_{4}[/tex] = 228.61 KJ/Kg
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the hazards associated with performing hot work include
Answer:
space look at tge explanation
Explanation:
Discuss some of the hazards associated with hot work in confined spaces. Provide specific examples or personal experiences in your response.
The hazards associated with performing hot work include:
HeatUVSparksFumesWhat are the Common Hazards of Hot Work?Note that when working with anything that cause spark or fire, the common hazard are:
Flying sparks. A Flammable swarfExplosive atmospheres, etc.Therefore, The hazards associated with performing hot work include:
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Which of the following is a slow rise of plastic deformation under the action of shear stresses when it is below the yield strength of the material.
a.Brittle Structure
b.Ductile fracture
c.Creep
d.Fatigue
Creep can be described as a process of the slow rise of plastic deformation under the action of shear stresses when it is below the yield strength of the material. Hence, Option C is correct.
What do you mean by permanent deformation?Permanent deformation can be defined as irreversible, the deformation remains even after the elimination of the carried out forces, at the same time as the transient deformation is recoverable because it disappears after the elimination of carried out forces.
therefore, the correct statement is Option C.
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Suppose that the weights for newborn kittens are normally distributed with a mean of 125 grams and a standard deviation of 15 grams. Determine the following. You must show your work or explain the reasoning or process you used to arrive at your answers. Please circle or highlight your final answers.
a. If a kitten weighs 99 grams at birth, what percentile of the weight distribution is it in?
b. How heavy must a kitten be, at a minimum, to be in the 90 th percentile (i.e. 90% of kittens weigh less than this amount)?
(a) If a kitten weighs 99 grams at birth, it is at 5.72 percentile of the weight distribution.
(b) For a kitten to be at 90th percentile, the minimum weight is 146.45 g.
Weight distribution of the kittenIn a normal distribution curve;
2 standard deviation (2d) below the mean (M), (M - 2d) is at 2%1 standard deviation (d) below the mean (M), (M - d) is at 16 %1 standard deviation (d) above the mean (M), (M + d) is at 84%2 standard deviation (2d) above the mean (M), (M + 2d) is at 98%M - 2d = 125 g - 2(15g) = 95 g
M - d = 125 g - 15 g = 110 g
95 g is at 2% and 110 g is at 16%
(16% - 2%) = 14%
(110 - 95) = 15 g
14% / 15g = 0.93%/g
From 95 g to 99 g:
99 g - 95 g = 4 g
4g x 0.93%/g = 3.72%
99 g will be at:
(2% + 3.72%) = 5.72%
Thus, if a kitten weighs 99 grams at birth, it is at 5.72 percentile of the weight distribution.
Weight of the kitten in the 90th percentileM + d = 125 + 15 = 140 g (at 84%)
M + 2d = 125 + 2(15) = 155 g ( at 98%)
155 g - 140 g = 15 g
14% / 15g = 0.93%/g
84% + x(0.93%/g) = 90%
84 + 0.93x = 90
0.93x = 6
x = 6.45 g
weight of a kitten in 90th percentile = 140 g + 6.45 g = 146.45 g
Thus, for a kitten to be at 90th percentile, the approximate weight is 146.45 g
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in ipsec's __________ mode, the data within an ip packet is encrypted, but the header information is not.
In ipsec's TRANSPORT mode, the data within an ip packet is encrypted, but the header information is not.
What is ipsec's TRANSPORT mode?IPSec transport mode is known to be often used if a given tunneling protocol (like GRE) is used to try and encapsulate the IP data packet, and later on, IPSec act as a form of protection for the GRE tunnel packets.
Therefore, In ipsec's TRANSPORT mode, the data within an ip packet is encrypted, but the header information is not.
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Transformation is the change of one energy form to another.
O True
O False
Where can you go to find the system requirements?
A. Instructor Contact Center
B. Library
C. Help Center
D. None of these.
Then you go to find the system requirements are the D. None of these as none of it dictates about the find the system requirements hen needed.
What is person requirement and device requirement?User necessities describe what the person ought to do . System necessities describe how will the person acquire person necessities while interacting with the device plus nonpurposeful necessities such as "the device ought to cope with one hundred thousand customers on the identical time". So: User requirement : The person ought to see their check results.Where is device necessities.
For packaged products, device necessities are regularly imprinted on the packaging. For downloadable products, the device necessities are regularly indicated at the download page. System necessities may be widely categorized as purposeful necessities, records necessities, pleasant necessities and constraints.
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The complete stress distribution obtained by superposing the stresses produced by an axial force and a bending moment is correctly represented by _______.
The complete stress distribution obtained by superposing the stresses produced by an axial force and a bending moment is correctly represented by F/A - (My)/(Iz).
What is the distribution of pressure at some stage in bending?Compressive and tensile forces expand withinside the path of the beam axis beneath neath bending loads. These forces set off stresses at the beam. The most compressive pressure is observed on the uppermost fringe of the beam whilst the most tensile pressure is positioned on the decrease fringe of the beam.
The bending pressure is computed for the rail through the equation Sb = Mc/I, wherein Sb is the bending pressure in kilos in keeping with rectangular inch, M is the most bending second in pound-inches, I is the instant of inertia of the rail in (inches)4, and c is the space in inches from the bottom of rail to its impartial axis.
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Technician A says that as long as the dog (clutch) teeth of the synchronizer are rounded, the synchronizer can be reused. Technician B says that the synchronizer sleeve should slide smoothly on its splines. Who is correct
Neither of the technicians are correct.
Who is a technician?A technician simply means an individual who looks after the technical equipments in a company.
In this case, the teeth of the synchronizer are not rounded, the synchronizer can be reused. This shows that he is incorrect likewise technician B.
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The telescoping arm ABC is used to provide an elevated platform for construction workers. The workers and the platform together have a mass of 220 kg and have a combined center of gravity located directly above C. Assume θ = 20°.
Answer:
That is not a question...
Question 2
A 120-V/24-V control transformer has a VA rating of 20. The maximum amperage
the transformer will put out is 0.8 amps.
True
False
Answer:
r h ch y TC GG ch hh h h
No se
Explanation:
No seibibk h j h uh t t t
what HTML
what is CSS
Hw to create website page
Answer:
HTML (HyperText Markup Language) is the code that is used to structure a web page and its content.
CSS is Cascading Style Sheet.CSS allows you to create great-looking web pages
Explanation:
Tech A says that on the full floating axle, there are two tapered roller bearings between the hub and the outside of the axle housing. Tech B says that a semi-floating axle, the axle supports the weight of the vehicle and is also subject to bending forces as the vehicle corners. Who is correct
The information depicted shows that both technicians are correct.
Who is a technician?This is an individual who overlooks the technical equipment in an organization.
In this case, on the full floating axle, there are two tapered roller bearings between the hub and the outside of the axle housing.
Also in a semi-floating axle, the axle supports the weight of the vehicle and is also subject to bending forces as the vehicle corners.
Therefore, they're both correct.
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The following is a dump of a udp header in hexadecimal format. 0632000d 001ce217 a. what is the source port number? b. what is the destination port number? c. what is the total length of the user datagram? d. what is the length of the data? e. is the packet directed from a client to a server or vice versa? f. what is the client process?
The source port number of the dump given above is 1586. The destination port number is given below.
What is the destination port number?The destination port number is given as 000DH = 13. Destination port number is determined by running the following command in the Command Prompt: netstat-a
Then you hit the enter button.
What is the total length of the user datagram?The total length of the datagram is given as 001CH = 28 bytes. Datagram is a form of message that is self-contained, that is relayed over the network. It must be noted that it's content cannot be guaranteed.
What is the length of the data?The length of the data is 20 bytes. This is arrived at by computing the following:
Data Lenght - Header
= 28 - 8
= 20bytes.
Is the packet directed from a client to a server or vice versa?
It is to be noted that the packet is directed from the client to the sever.
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Determine the minimum number of 120-volt, 20-ampere circuit breakers for a continuous load consisting of 63 feet of track lighting to be installed in a dress shop. Calculate the number of circuits to the larger whole number.
If we have 20-ampere circuit breakers. The number of circuits to the larger whole number is: 13.
Number of circuitsReceptacles on a single strap= 180 VA each.
Hence,
VA of the circuit=(Volts x Amperes)/One receptacle
Let plug in the formula
VA of the circuit=(120 volts x 20 amperes)/180 VA
VA of the circuit= 2,400 VA (circuit)/180 VA
VA of the circuit = 13 circuits
Therefore the number of circuits to the larger whole number is: 13.
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the ____ grinder provides more precise x- and y-axis movements than a vertical milling machine for extremely accurate positioning
Answer:
the jig grinder provides more precise x- and y-axis movements than a vertical milling machine for extremely accurate positioning
In a basketball game, the point guard A intends to
throw a pass to the shooting guard B, who is breaking
toward the basket at a constant speed of 12 ft /sec. If
the shooting guard is to catch the ball at a height
of 7 ft at C while in full stride to execute a layup,
determine the speed v0 and launch angle with
which the point guard should throw the ball
In a basketball game, point guard A intends the speed as 47.76 ft/sec, and the launch angle will be 41.084°.
What is the projectile motion?The projectile motion is given as the motion of the object in the curved path near the earth's surface. The throwing of the ball will follow the projectile motion.
The missing image is attached below.
The given game situation consists of:
Velocity of shooting guard (vs) = 12 ft/sec.
Distance from B to C (sc) = 20 ft
Final height to catch the ball, 7 ft
The total distance to cover from B to C = 60 ft
Time is taken to reach B to C = Distance/Speed
Time to reach B to C = 20ft/12ft/sec
Time to reach B to C = 1.667 sec.
The time taken to cover the horizontal distance:
Distance = Velocity * Time
60³ = v₀cosθ * distance/time
60³ = v₀cosθ * 20/12
v₀cosθ = 36 ft/sec
The vertical movement can be given where, g = 32.2 ft/sec²:
s = s₀ + v₀sinθ * time + 1/2 -g time²
7 = s + v₀sinθ * 20/12 - 1/2 32.2 ft/sec² * (20/12)²
v₀sinθ = 31.3875 ft/sec
[tex]\rm v_0 =\sqrt{v_0sin\theta^2\;+\;v_ocos\theta^2}[/tex]
Substituting the values:
v₀ = 47.76 ft/sec
The launch angle for the ball will be:
tanθ = v₀sinθ/v₀cosθ
tanθ = 31.3875/36
tanθ = 0.871
θ = 41.084°
Thus, the speed v₀ of the ball will be 47.76 ft/sec, and the launch angle will be 41.084°.
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____ lanes give drivers the time and space to reduce their speed to what is posted and/or prepare for the sharpness of the curve
Exit lanes give drivers an ample time and space to minimize (reduce) their speed to what is posted and prepare them for the sharpness of the curve.
What is a speed limit?A speed limit is the maximum amount of speed that is legally permitted in an area for safety. Hence, this limit must be abided and strictly adhered to by all road users such as drivers of a vehicle.
As a safety precaution, Exit lanes are constructed to give drivers an ample time and space to minimize (reduce) their speed to the required speed limit posted and prepare them for the sharpness of the curve.
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A 7-hp (shaft) pump is used to raise water to an elevation of 15 m. If the mechanical efficiency of the pump is 82 percent, determine the maximum volume flow rate of water.
The maximum volume flow rate of water is determined as 0.029 m³/s.
Power of the pump
The power of the pump is watt is calculated as follows;
1 hp = 745.69 W
7 hp = ?
= 7 x 745.69 W
= 5,219.83 W
Mass flow rate of waterη = mgh/P
mgh = ηP
m = ηP/gh
m = (0.82 x 5,219.83)/(9.8 x 15)
m = 29.12 kg/s
Maximum volume rateV = m/ρ
where;
ρ is density of water = 1000 kg/m³V = (29.12)/(1000)
V = 0.029 m³/s
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____ grinders are used to grind diameters, shoulders, and faces much like the lathe is used for turning, facing, and boring operations.
Answer:
Cylindrical
Explanation:
A cylindrical grinder is a tool for shaping the exterior of an item. Although cylindrical grinders may produce a wide range of forms, the item must have a central axis of rotation. Shapes such as cylinders, ellipses, cams, and crankshafts are examples of this. Cylindrical grinding machines are specialized grinding machines that are used to process cylinders, rods, and similar workpieces. The cylinders revolve in one direction between two centers, while the grinding wheel or wheels are close together and rotate in the other direction.
A _________ can used for both entering and exiting a highway.
The lane that can be used for both entering and exiting a highway is called; A weave lane
How to enter a highway?When it comes to road highways, there are different terminologies that apply such as Acceleration lane, Deceleration Lane, Interchange, Weave lane, Urban roadway e.t.c
However, when it comes to the one that can be used for both entering and exiting a highway, the correct answer will be Weave Lane because it has both an entrance and an exit for an expressway. Traffic may come onto and leave the expressway at the same location.
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Nonshielded cable with a 1.5-inch diameter should have a minimum bending radius of
A. 1.5 in.
B. 12.0 in.
C. 3.0 in
D. 18.0 in.
Answer:
c is the answer because we have to double the number
A non-shielded cable should have a 3.0 in minimum bending radius and a 1.5 in maximum diameter. As a result, choice (C) is the right response.
What are shielded and unshielded cable?Based on their architecture, these cables are typically divided into two classes: shielded cables and unshielded cables.
Shielded twisted pair (STP) cable is another name for shielded cables. It has distinct wire pairs that are foil-wrapped. To offer double protection, these pairs are wrapped one more time. The shielding aids in preventing EMI and other technical problems that can jeopardize the signal integrity.
Unshielded cable, also known as unshielded twisted pair cable (UTP), is a type of cable in which the individual wire pairs are simply wrapped in foil without any additional layers of protection. Office settings with low traffic are best suited for unshielded wires.
Hence option (C) is accurate.
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A trap in the condensate line prevents ____.A) air and foreign material from being drawn up into the drain line. B.) foreign particles
A trap in the condensate line prevents D. All of the above.
What is the idea of the trap?It should be noted that the idea of the condensate drain trap is to use the weight of the water to stop the flow of air.
Based on the information given, all the options are correct. Therefore, the correct option is D.
a. air and foreign material from being drawn up into the drain line
b. additional cooling load from warm air drawn up into the air handler
c. insect invasion of the system
d. all of the above
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Technician A says electrical circuit resistance causes voltage drop. Technician B says high-resistance problems cause an increase in current flow. Who is correct
The person that is correct is Technician A as electrical circuit resistance causes voltage drop.
What is a circuit?It should be noted that an electric circuit is the path through which electric changes flow in order to conduct current.
In this case, the person that is correct is Technician A as electrical circuit resistance causes voltage drop.
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Show that the locus of poles of ButterWorth low pass filter gives a circle.
Explanation:
1 answer
The area of triangle with vertices A(0, 9), B(0, 4) and C( - 5, - 9) is
Answer:
It gives a circle
Explanation:
Back-fill used for underground wiring shall not damage ____________ or prevent adequate compaction of fill or contribute to corrosion.
The back-fill used for underground wiring shall not damage the raceways, cables, and conductors or prevent adequate compaction of fill or contribute to corrosion.
What do you mean by underground wiring?A unique form of electric wiring or cable this is designed to be buried in a trench underground is known as Direct-burial cable. The character electric accomplishing wires in the cable are encased in a strong thermoplastic sheath that seals out moisture and protects the accomplishing wires within.
The complete question is given below:
(a) raceways
(b) cables
(c) conductors
(d) all of these
Thus, The back-fill used for underground wiring shall not damage the raceways, cables, and conductors or prevent adequate compaction of fill or contribute to corrosion.
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