The statement is TRUE in a reusable resource system, reducibility is independent of the order of reduction. The reduction order can affect the parallelism of the programs, but it does not influence the final result of a reduction.
This property is known as confluence or the Church-Rosser property, which states that the reducibility of a term is independent of the path followed by its evaluation.In formal language, the confluence of a reduction system R is that each pair of terms M, N ∈ R has a common reduct P ∈ R that can be achieved by reduction sequences from M and N. It implies that no matter the order of the reductions or the different reduction sequences, the reduction of M and N will always converge to the same result.In a reusable resource system, reducibility is guaranteed because of the controlled communication and synchronization mechanisms in the design. These mechanisms ensure that every process can access and modify the shared resources in a consistent way. Therefore, the order in which the resources are accessed or released is irrelevant because the system guarantees their availability and coherence. Consequently, the system can achieve concurrency and scalability without compromising safety or consistency.Example: Let us consider a reusable resource system with a set of two resources, A and B, that can be shared by four processes P1, P2, P3, and P4. Suppose that P1 acquires resource A and B, P2 acquires B and then A, P3 acquires A, and P4 acquires B.
In this case, the order of resource acquisition is different for every process, but the system guarantees that every process can obtain the required resources. Therefore, the order of resource acquisition does not affect the reducibility of the system.
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Does a moving airplane develop a largeemf?An airplane travels 1000 km/h in a region where theEarth’s magnetic field is about 5 x 10-5T and isnearly vertical. What is the potential differenceinduced between the wing tips that are 70 m apart?
Yes, a moving airplane can develop a large EMF (electromotive force) due to its movement through the Earth's magnetic field.
This is because the movement of the airplane through the magnetic field creates a changing magnetic flux, which induces an EMF in the airplane's frame. The magnitude of the induced EMF depends on the speed of the airplane, the strength of the magnetic field, and the size and shape of the airplane's frame. In the given scenario, the airplane is traveling at a speed of 1000 km/h in a region where the Earth's magnetic field is about \(5 * 10^-5 ^{2}\) T and is nearly vertical. Assuming the wings of the airplane are horizontal and perpendicular to the direction of motion, the potential difference induced between the wing tips that are 70 m apart can be calculated using the formula: EMF = B x L x v
where B is the strength of the magnetic field, L is the length of the conductor (in this case, the distance between the wing tips), and v is the velocity of the conductor (in this case, the speed of the airplane). Therefore, the potential difference induced between the wing tips of the airplane is approximately 3.5 volts.
Yes, a moving airplane can develop an induced EMF due to the interaction between its motion and the Earth's magnetic field. To calculate the potential difference induced between the wing tips, we can use the formula for the EMF generated in a conductor moving through a magnetic field: EMF = B * L * v
where:
- EMF is the induced electromotive force (potential difference)
- B is the magnetic field strength (5 x 10^-5 T)
- L is the distance between the wing tips (70 m)
- v is the airplane's speed converted to m/s
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Yes, a moving airplane does develop a large emf (electromotive force) due to its motion through the Earth's magnetic field.
This phenomenon is known as electromagnetic induction, which occurs when a conductor (in this case, the airplane) moves through a magnetic field and generates an emf. The induced emf can be calculated using the equation V = B*L*v, where V is the potential difference induced, B is the magnetic field strength, L is the length of the conductor (70 m in this case), and v is the velocity of the airplane (1000 km/h or 278 m/s). Using these values, we can calculate that the potential difference induced between the wing tips of the airplane is approximately 9.7 volts.
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What’s Statistics
What are the 2 Source of error in data collection
Explanation:
The main sources of error in the collection of data are as follows : Due to direct personal interview. Due to indirect oral interviews. Information from correspondents may be misleading. Mailed questionnaire may not be properly answered. Schedules sent through enumerators, may give wrong information.
For binary flash distillation, we discussed in class that there are 8 variables (F, ZA, V, ya, L, XA, P and T) and 4 equations derived from VLE and mass balances. Thus, we typically require 4 of these variables to be given so that we can obtain a unique solution to the problem. Let's say, your manager tells you that he has a feed mixture with 2 components (given F, za) and he requires you to come up with a flash column that can produce a certain desired amount of Vapor product (thus V, ya are specified). Identity of both components is known and all VLE data has been provided to you. Has the manager given you enough data? If yes, give a step-by-step description of how would you go about designing the flash column (basically find P and T)? If no, why?
Answer:
yes
Explanation:
ooooooooooooooooooooooooooooooo
An asbestos pad is square in cross section, measuring 5 cm on a side at its small end, increasing linearly to 10 cm on a side at the large end. The pad is 15 cm high. If the small end is held at 600 K and the large end at 300 K, what heat‐flow rate will be obtained if the four sides are insulated? Assume one‐dimensional heat conduction. The thermal conductivity of asbestos may be taken as 0.173 W/m⋅K.
A battery consists of
solution.
and an electrolyte, wh
Select one:
O a. Two dissimilar metals
b. An insulator material separating the metals
c. Both A and B
O d. Neither A nor B
Clear my choice
Answer:
c
Explanation:
positive charge and negative charge but cant touch
Estimate the heating energy requirements for a residential building using the degree-day method (a) in Denver, Colorado, and (b) in Little Rock, Arkansas. The overall heat loss coefficient is 400 Btu/h.oF and the furnace efficiency is 0.78.
Answer:
a) 600°F days
b) 103°F days
Explanation:
Given data :
overall heat loss coefficient = 400 Btu/h.oF
Furnace efficiency = 0.78
applying the degree- day method the heating energy requirement per day can be obtained by subtracting the average temperature for a particular day from the acceptable mid/balance point temperature
lets assume the mid/balance point temperature = 65°F
a) heating energy requirement in Denver Colorado
we will have 600°F days ; considering the the average temperature - balance point temperature
= 665 - 65 = 600°F
b) heating energy requirement in Little Rock Arkansas
we will have 103° days
A 45o reducing elbow can be found in many piping systems. Crude oil (r = 52.5 lbm/ft3) flows into the elbow with a velocity of 5.5 ft/s and is deflected through an angle of 45o. The inlet diameter is 6-in, and the outlet diameter is 4-in. The inlet and outlet gage pressures are 35 psig and 32.5 psig, respectively. If the elbow is located in a horizontal plane, determine the restraining forces in the x and y-directions in lb
Answer:
the restraining forces in the x and y-directions are :
\(\mathbf{ F_x =1510.63 \ lbf}\)
\(\mathbf{F_y =6242.17 \ lbf}\)
Explanation:
From the given information;
Let us first calculate the outlet velocity by using continuity equation.
\(A_1v_1= A_2v_2\)
\(\dfrac{\pi}{4}D_1^2 *v_1 = \dfrac{\pi}{4}D_2^2 *v_2\)
where;
\(D_1\) = inlet diameter = 6 - In
\(D_2 =\) outlet diameter = 4 -In
inlet velocity \(v_1 = 5.5 \ ft/s\)
outlet velocity = ???
\(\dfrac{\pi}{4}*6^2 *5.5 = \dfrac{\pi}{4}*4^2 *v_2\)
\(36*5.5= 16 v_2\)
\(198 = 16 v_2\)
\(v_2 = \dfrac{198}{16}\)
\(v_2 = 12 .375 \ ft/s\) to In; we have
Since 1 ft = 12 inches; thus
12.375 ft/s = (12.375 × 12 ) inches = 148.5 In/s
\(v_1 =\) 5.5 ft/s = 66 In/s
By using the linear momentum in x-direction for the volume ; we have the relation:
\(\sum F_x = \sum \dfrac{mdv}{dt}x \\ \\ P_1A_1 - P_2A_2 * \ cos 45 + F_x = (m_2)V_2* \ cos 45 - ( m_1)v\)
where;
\(m = \rho AV\)
\(P_1A_1 - P_2A_2 * \ cos 45 + F_x = (\rho A_2 V_2)V_2* \ cos 45 - ( \rho A_1 V_1)v\)
\(35*\dfrac{\pi}{4}*6^2 - 32.5*\dfrac{\pi}{4}*4^2 * \ cos 45 + F_x = \dfrac{52.5}{12^3}( \dfrac{\pi}{4}*4^2*(148.5)^2 * cos 45 - \dfrac{\pi}{4}*6^2*66^2)\)
\(700.81 + F_x = 2211.44\)
\(F_x = 2211.44-700.81\)
\(\mathbf{ F_x =1510.63 \ lbf}\)
\(\sum F_y =\dfrac{m dvy}{dt}\)
\(- P_2A_2 * \ Sin \ 45 + F_y = (\rho A_2 V_2 )V_2* \ sin 45 - 0\)
\(F_y = (\rho A_2 V_2 )V_2* \ sin 45 + P_2A_2 * \ Sin \ 45 +\)
\(F_ y = 32.5 * \dfrac{\pi}{4}*4^2* sin 45 + \dfrac{52.5}{12^3} *\dfrac{\pi}{4}*4^2*148.5^2*sin45\)
\(F_y = 288.79 +5953.38\)
\(\mathbf{F_y =6242.17 \ lbf}\)
Therefore; the restraining forces in the x and y-directions are :
\(\mathbf{ F_x =1510.63 \ lbf}\)
\(\mathbf{F_y =6242.17 \ lbf}\)
why is ongoing safety training important
Answer:
Keeps workers interested and motivated, helping reduce dangerous behavior and eliminate hazardous situations
Explanation:
Frequent hands-on training and practice drives home the message that safety is a critical part of any work site. Safety should always be a top concern for every company and organization.
Identify the first step in preparing a spectrophotometer for use.
A. Make sure all samples and the blank are ready for measurement.
B. Prepare a calibration curve.
C. Measure the absorbance of the blank.
D. Turn on the light source and the spectrophotometer.
Answer:
D. Turn on the light source and the spectrophotometer.
Explanation:
A spectrophotometer is a machine used to measure the presence of any light-absorbing particle in a solution as well as its concentration. To prepare a spectrophotometer for use, the first step is to turn on the spectrophotometer and allow it to warm up for at least 15 minutes. After this is done, the next step will be to ensure that the samples and blank are ready. Next, an appropriate wavelength is set for the solute being determined. Finally, the absorbance is measured of both the blank and samples.
Which items are NOT found on a
door?*
5 points
Cladding
Moulding
Weatherstrip
Check Strap
Striker
All of the above
None of the above
Answer:
None of the above cause thats what i put
A 240-ton tugboat is moving at 6 ft/s with a slack towing cable attached to a 100-ton barge that is at rest. The cable is being unwound from a drum on the tugboat at a constant rate of 5.4 ft/s and that rate is maintained after the cable becomes taut.
The velocity of the tugboat after the cable becomes taut is:_________
The velocity when the cable becomes taut can be obtained by assuming
that the tugboat collides with a barge moving in the same direction.
Response (approximate value):
The velocity of the tugboat after the cable becomes taut is: 5.824 ft./s.How is the law of conservation of linear momentum used to calculate the speed of the tugboat?Weight of the tugboat, m₁ = 240–ton
Speed of the tugboat, v₁ = 6 ft./s
Weight of the barge, m₂ = 100–ton
Rate at which the towing cable is being unwound, v₂ = 5.4 ft./s
Required:
Velocity of the tugboat after the cable becomes taut.
Solution:
m₁ = 240 ton = 240,000 kg
m₂ = 100 ton = 100,000 kg
The velocity of the barge at rest is assumed to be the rate at which the cable is being unwound, and in the direction of the tugboat.
According to the law of conservation of linear momentum, we have;
m₁ × v₁ + m₂ × v₂ = (m₁ + m₂) × v₃
Which gives;
240 × 6 + 100 × 5.4 = (240 + 100) × v₃
1980 = 340 × v₃
Which gives;
\(v_3 = \dfrac{1980}{340} = \dfrac{99}{17} = 5\frac{14}{17} \approx \mathbf{ 5.824}\)
The velocity of the tugboat after the rope becomes taut is 5.824 ft./s
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The use of a center line plus the diameter symbol indicates that part is?
The use of a center line plus the diameter symbol indicates that the part is a circular feature or hole.
The diameter sign, which is used to indicate the circle's size, is typically positioned on the centerline. The term "diameter dimensioning" refers to this method of dimensioning, which is frequently employed in mechanical engineering and manufacturing. The centerline, which stands for the circle's midway, is utilised to make sure that the circular feature is precisely where it needs to be in relation to other characteristics on the part. A numerical value that indicates the diameter of the circle in a particular unit of measurement, such as inches or millimetres, is often placed above or below the centerline along with the diameter sign.
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The steel bracket is used to connect the ends of two cables. if the allowable normal stress for the steel is sallow = 30 ksi, determine the largest tensile force p that can be applied to the cables. assume the bracket is a rod having a diameter of 1.5 in.
The largest tensile force that can be applied to the cables given a rod with diameter 1.5 is 2013.15lb
The static equilibrium is given as:
F = P (Normal force)
Formula for moment at section
M = P(4 + 1.5/2)
= 4.75p
Solve for the cross sectional area
Area = \(\frac{\pi d^{2} }{4}\)
d = 1.5
\(\frac{\pi *1.5^{2} }{4}\)
= 1.767 inches²
Solve for inertia
\(\frac{\pi *0.75^4}{4}\)
= 0.2485inches⁴
Solve for the tensile force from here
\(\frac{F}{A} +\frac{Mc}{I}\)
30x10³ = \(\frac{P}{1.767} +\frac{4.75p*0.75}{0.2485} \\\\\)
30000 = 14.902 p
divide through by 14.902
2013.15 = P
The largest tensile force that can be applied to the cables given a rod with diameter 1.5 is 2013.15lb
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which of the following could be used to replace steps 3 and 4 so that the algorithm works as intended? responses step 3 increase the value of position by 1. step 4 repeat steps 2 and 3 until the value of count is greater than 100. step 3 increase the value of position by 1 . step 4 repeat steps 2 and 3 until the value of count is greater than 100 . step 3 increase the value of position by 1. step 4 repeat steps 2 and 3 until the value of position is greater than n. step 3 increase the value of position by 1 . step 4 repeat steps 2 and 3 until the value of position is greater than n . step 3 repeat step 2 until the value of count is greater than 100. step 4 increase the value of position by 1. step 3 repeat step 2 until the value of count is greater than 100 . step 4 increase the value of position by 1 . step 3 repeat step 2 until the value of position is greater than n. step 4 increase the value of count by 1.
Steps 4 and 5 could be replaced with the following option to ensure that the method functions as intended:choice D.
What is an algorithm?Steps 4 and 5 could be replaced with the following option to ensure that the method functions as intended:choice DAn algorithm is a regular formula (process) made up of a series of finite steps and instructions that are carried out on a computer system in order to allow software to solve a specific problem under the necessary circumstances.In this case, the following alternatives could be used to swap out stages 4 and 5 so that the algorithm performs as the programmer intended:Step 4: Continue to repeat steps 2 and 3 until position's value exceeds n.Step 5: Show true if count is higher than or equal to (>) 2Display false if not.To learn more about algorithm refer
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Argue why electrode therapy is NOT the most effective treatment for brain disorders, and recommend an alternative treatment.
Answer:
Due to risk of damaging of brain.
Explanation:
The electrode therapy is not the most effective treatment for brain disorders because there are various other treatments which can treat the brain disorder without causing damage to the brain. electrode therapy greatly damaged the brain instead of treatment of brain disorder. Medication is the best way to treat brain disorder so that's why electrode therapy is not considered as the most effective treatment for brain disorders, and the doctors recommend an alternative treatment.
QUESTION 8
Per the Machinery's Handbook, close-fitting bushings in drill jigs may increase
holes.
wear
friction
heat
damage
on the drill and cause swarf to plug up the drill
Answer:
Explanation:
heat
difference between velocity profile and velocity distribution
Answer:
Profile is a graphical representation of velocity distribution
1:Rewrite the distance function from the chapter 4 titled Fruitful functions so that it takes two Points as parameters instead of four numbers. 2:Add a method reflect_x to Point which returns a new Point, one which is the reflection of the point about the x-axis. The reflect x of Point(3, 4) is 3: Add a method area to the Rectangle class that returns the area of any instance, 4: Write a flip method in the Rectangle class that swaps the width and height of any rectangle instance. 5:0 Write a new method in the Rectangle class to test if a Point falls within the rectangle. For this exercise, assume that a rectangle at (0,0) with width 10 and height 5 has open upper bounds on the width and height, i.e. it stretches in the x direction from [0 to 10), where 0 is included but 10 is excluded, and from 0 to 5) in the y direction. So it does not contain the point (10, 2).
1. The revised distance function that takes two Points as parameters instead of four numbers:
def distance(p1, p2):
return ((p2.x - p1.x) ** 2 + (p2.y - p1.y) ** 2) ** 0.5
2. The added reflect_x method in the Point class:
class Point:
def __init__(self, x, y):
self.x = x
self.y = y
def reflect_x(self):
return Point(self.x, -self.y)
3. The added area method and flip method in the Rectangle class:
class Rectangle:
def __init__(self, width, height):
self.width = width
self.height = height
def area(self):
return self.width * self.height
def flip(self):
self.width, self.height = self.height, self.width
4. The new method in the Rectangle class to test if a Point falls within the rectangle:
class Rectangle:
def __init__(self, width, height):
self.width = width
self.height = height
def area(self):
return self.width * self.height
def flip(self):
self.width, self.height = self.height, self.width
def contains(self, point):
if 0 <= point.x < self.width and 0 <= point.y < self.height:
return True
else:
return False
How can the distance between two points be calculated using the revised function in Python?In the revised distance function, we modify it to take two Point objects as parameters instead of four numbers. By passing two Points, p1 and p2, the function calculates the distance between them using the Euclidean distance formula. The reflect_x method in the Point class creates a new Point that is the reflection of the original Point about the x-axis.
The area method in the Rectangle class computes the area of any instance of a rectangle by multiplying its width and height. The flip method swaps the width and height values of a rectangle. Finally, the contains method checks if a given Point falls within the rectangle by comparing its coordinates to the rectangle's width and height.
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A 5/16-24 unf 2b hole needs to be machined on a part. What drill size or letter should be selected to drill the pilot hole for the tap?
The correct answer is tap drill size calculator for thread size from 0.060 to 2 inch including 2-56, 4-40, 6-32, 8-32, 10-32, 1/4, 5/16, 3/8, 1/2, 5/8 and 3/4.
Typical drill bits have markings somewhere on the shank above the threads. It's small, but it usually has the drill-bit diameter stamped into the metal; the number is written in fractions. For example, the markings may read: 1/4-inch, 3/6-inch or 25/32.General-use drills have the most common chuck size of 3/8-inch to accommodate the majority of drill bits. The most powerful cordless drill would have a 1/2-inch chuck for heavy-duty applications while light-duty tools have fixed 1/4-inch size.
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A cantilever beam has a length L and is loaded by a triangularly distributed load of maximum intensity q0 at B. (Solve this problem by integration the differential equations of the deflection curve. The beam has constant flexural rigidity E I.)
The Deflection due to Triangular load is 11q₀L⁴/120EI
What is deflection due to triangular load?The deflection due to the triangular load is usually given as:
σ₁ = 11q₀L⁴/120EI
Deflection due to reaction (R\(_{b}\))(σ₂) =
R\(_{b}\)L³/3EI
⇒ σ₁ = σ₂⇒ 11q₀L⁴/120EI
= R\(_{b}\)L/3EI= R\(_{b}\)
= 11q₀L/40
What is the significance of deflection in a beam?In terms of structural engineering, a beam or node moving from its initial location is referred to as deflection.
It occurs as a result of the loads and forces that are placed on the body.
Deflection, also known as displacement, can result from the weight of the body structure itself or from externally applied stresses.
What is the relevance of deflection due to triangular load?A structure's deflection must be taken into account during design, and the consequences of not doing so can be disastrous.
Deflections may be caused by various loads. These include, among others,
ground pressureearthquakeswind loadsshear loadspoint loadsevenly distributed loads and uniformly distributed loads.Learn more about similar solutions at;
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name the process by which mild steel can be converted into high carbon steel and explain it briefly ?
Answer:
please give me brainlist and follow
Explanation:
Mild steel can be converted into high carbons steel by which of the following heat treatment process? Explanation: Case hardening, also referred as carburizing increases carbon content of steel, thus, imparting hardness to steel.
what are the dimension of the container
Answer:
Dimensions of a standard container is length 5.440 m 17'10 3/16' width 2.294 m 7'6 1/4' height centimeters 3.237 7'4 1/16'
Explanation:
Standard height for a shipping container is 8 feet 6 inches
For the three-point bending test set up in this lab, what would be the shear force and moment distributions along the beam axis
Answer: So to calculate the flexural strength (σ), multiply the force by the length of the sample, and then multiply this by three. Then multiply the depth of the sample by itself (i.e., square it), multiply the result by the width of the sample and then multiply this by two
Explanation:
Create an abstract class DiscountPolicy. It should have a single abstract method computeDiscount that will return the discount for the purchase of a given number of a single item. The method has two parameters, count and itemCost. 2. Derive a class BulkDiscount from DiscountPolicy, as described in the previous exercise. It should have a constructor that has two parameters, minimum and percent. It should define the method computeDiscount so that if the quantity purchased of an item is more than minimum, the discount is percent percent. 3. Derive a class BuyNItemsGetOneFree from DiscountPolicy, as described in Exercise 1. The class should have a constructor that has a single parameter n. In addition, the class should define the method computeDiscount so that every nth item is free. For example, the following table gives the discount for the purchase of various counts of an item that costs $10, when n is 3: count 1 2 3 4 5 6 7 Discount 0 0 10 10 10 20 20
4. Derive a class CombinedDiscount from DiscountPolicy, as described in Exercise 1. It should have a constructor that has two parameters of type DiscountPolicy. It should define the method computeDiscount to return the maximum value returned by computeDiscount for each of its two private discount policies. The two discount policies are described in Exercises 2 and 3. 5. Define DiscountPolicy as an interface instead of the abstract class described in Exercise 1.
Answer:
Java Code was used to define classes in the abstract discount policy,The bulk discount, The buy items get one free and the combined discount
Explanation:
Solution
Code:
Main.java
public class Main {
public static void main(String[] args) {
BulkDiscount bd=new BulkDiscount(10,5);
BuyNItemsGetOneFree bnd=new BuyNItemsGetOneFree(5);
CombinedDiscount cd=new CombinedDiscount(bd,bnd);
System.out.println("Bulk Discount :"+bd.computeDiscount(20, 20));
System.out.println("Nth item discount :"+bnd.computeDiscount(20, 20));
System.out.println("Combined discount :"+cd.computeDiscount(20, 20));
}
}
discountPolicy.java
public abstract class DiscountPolicy
{
public abstract double computeDiscount(int count, double itemCost);
}
BulkDiscount.java
public class BulkDiscount extends DiscountPolicy
{
private double percent;
private double minimum;
public BulkDiscount(int minimum, double percent)
{
this.minimum = minimum;
this.percent = percent;
}
at Override
public double computeDiscount(int count, double itemCost)
{
if (count >= minimum)
{
return (percent/100)*(count*itemCost); //discount is total price * percentage discount
}
return 0;
}
}
BuyNItemsGetOneFree.java
public class BuyNItemsGetOneFree extends DiscountPolicy
{
private int itemNumberForFree;
public BuyNItemsGetOneFree(int n)
{
itemNumberForFree = n;
}
at Override
public double computeDiscount(int count, double itemCost)
{
if(count > itemNumberForFree)
return (count/itemNumberForFree)*itemCost;
else
return 0;
}
}
CombinedDiscount.java
public class CombinedDiscount extends DiscountPolicy
{
private DiscountPolicy first, second;
public CombinedDiscount(DiscountPolicy firstDiscount, DiscountPolicy secondDiscount)
{
first = firstDiscount;
second = secondDiscount;
}
at Override
public double computeDiscount(int count, double itemCost)
{
double firstDiscount=first.computeDiscount(count, itemCost);
double secondDiscount=second.computeDiscount(count, itemCost);
if(firstDiscount>secondDiscount){
return firstDiscount;
}else{
return secondDiscount;
}
}
}
Which statement about the seal between the respirator and the wearer's face is true?
POSSIBLE ANSWERS:
Negative pressure respirators prevent ambient air from entering the mask.
Cosmetic surgery can be completed without a re-evaluation of respirator fit.
Positive pressure respirators tighten the face mask when the wearer inhales.
Facial hair can prevent a respirator from properly sealing to the wearer’s face.
A true statement about the seal between the respirator and the wearer's face is: D. facial hair can prevent a respirator from properly sealing to the wearer’s face.
What is a respirator?A respirator can be defined as a personal protective equipment that is typically worn over the face to protect the mouth and nose, while protecting the wearer from inhaling smoke, dust, or other toxic chemical substances.
In this context, a true statement about the seal between the respirator and the wearer's face is that facial hair has the ability to prevent a respirator from properly sealing to the wearer’s face.
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A bowl contains 15 red balls, 20 green balls and 12 blue balls. A woman selects balls at random without
looking at them. How many balls must she select to be sure of having at least three balls of the same color?
Answer:
The answer to this question is 9 balls
the voltage valve at which a zirconia O2S switches from rich to lean and lean to rich is
A) 0.5v (500mv)
B) 0.45v (450mv)
C) 0.25v (250mv)
D) 0.90v (900)
The need for extraction of raw metals for making steel has been reduced due to the?
Answer: Increase in minimills
Explanation:
A soil sample, taken from a borrow pit has a specific gravity of soil solids of 2.66. The sample was taken to a materials laboratory and tested. The results of a standard Proctor test are tabulated below.
Weight of Soil (lb) Moisture Content (%)
3.20 12.8
3.78 13.9
4.40 15.0
4.10 15.7
3.70 16.6
3.30 18.1
The maximum dry density in lb/ft3 is most nearly:_______
Answer:
115 Ib/ft^3
Explanation:
To determine the maximum dry density in Ib/ft3 we have to calculate :
Bulk unit weight ( yb ) ; W / v
Dry unit weight ( yd. ) : yb / ( 1 + w )
For every set of data given
assuming v = 1/30 ft^3
calculating for the 3 data set ( maximum dry density )
weight of soil (W) = 4.40
moisture content (%) (w) = 15.0 = 0.15
Bulk unit weight (yb) = 4.40 / (1/30) = 132 Ib/ft^3
Dry unit weight ( yd. ) = 132 / ( 1 + 0.15 ) = 114.702 Ib/ft^3
therefore after calculations the maximum dry density in Ib/ft^3 ≈ 115 Ib/ft^3
for the closed tank with bourdon-tube gages tapped into it, what is the specific gravity of the oil and the pressure reading on gage c?
The specific gravity of the oil in the closed tank with Bourdon-tube gages tapped into it depends on the type of oil being used. Generally speaking, the specific gravity of a petroleum-based oil is between 0.85 and 0.95.
The pressure reading on Gage C will also depend on the type of oil being used and the pressure inside the tank.
For example, if the tank is filled with water, then the pressure reading on Gage C will be the same as the atmospheric pressure.
Additionally, any changes in the atmospheric pressure can also affect the pressure reading on Gage C. To ensure accurate readings, it is important to monitor the pressure in the tank and adjust the pressure reading on Gage C accordingly.
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