Answer:
they occur at the same time
Explanation:
What this means is that if let's say on a particular cash record we have two transactions on the same date: For example,
11th/20/2020 received $50 from Jude and received $950 from Paul to pay his credit balance.12th/20/2020Only the two transactions on the 11th are permissible to sum the dollar amounts without conversion.
How many steps are there in the problem-solving process?
nine steps
six steps
eight steps
seven steps
Answer:
I think 7
Explanation:
Here are seven-steps for an effective problem-solving process.
1.Identify the issues. Be clear about what the problem is. ...
2.Understand everyone's interests. ...
3.List the possible solutions (options) ...
4.Evaluate the options. ...
5.Select an option or options. ...
6.Document the agreement(s). ...
7.Agree on contingencies, monitoring, and evaluation.
1. When measuring a cylinder for wear, the most wear will be found at the
Answer:
Most cylinder wear occurs at the top of ring travel.
determine the application of star connected network
Answer:
fijixuc uckyc7fmtjjr hcumffjmfumfnng
Answer:
a method of connecting polyphrase circuits in which one end of each phase line is connected to a common neutral point that may be connected to the earth as protection against lightning or to a wire to which all the other neutral points of the system are connected
Explanation:
Reference sources reveal that a workpiece material has a unit horsepower of 1.6 hp/in3/min. For a turning operation, the cutting velocity is set at 500 ft/min with a corresponding feed of 0.025 in/rev. and a depth of cut of 0.2 in. From the given data, calculate:_______.
The question is incomplete. We have to calculate :
a). the cutting force
b). volumetric metal removal rate, MRR
c). the horsepower required at the cut
d). if the power efficiency of the machine tool is 90%, determine the motor horsepower
Solution :
Given :
Cutting velocity (v) = 500 ft/min
= 500 x 12 in/min
= 6000 in/min
Feed , f = 0.025 in/rev
Depth of cut, d = 0.2 in
b). Volumetric material removal rate, MRR = v.f.d
= 6000 x 0.025 x 0.2
= 30 [tex]$in^3 / min$[/tex]
c). Horsepower required = MRR x unit horsepower
= 30 x 1.6
= 48 hp
a). Cutting force,
[tex]$F=\frac{power}{cuting \ velocity}$[/tex]
[tex]$=\frac{48 \times 550}{500 /60}$[/tex] (1 hp = 550 ft lbf /sec)
= 3168 lbf
d). Machine HP required
[tex]$=\frac{HP}{\eta}$[/tex]
[tex]$=\frac{48}{0.9}$[/tex]
= 53.33 HP
An engineer designing a vibration isolation system for an instrument console models the consoleand isolation system as a 1 degree-of-freedom spring-mass-damper system. The modeled mass is 2kg, the spring constant is 8 N/m, and the damping constant is 1 Ns/m. The system is exposed to atime-varying force acting on the mass. This force measured is approximated by:F(t) = 20 sin(4t) [N]. Determine the steady-state response of the system to this input.
Solution :
Given :
m = 2 kg
k = 8 N/m
C= 1 N-s/m
F(t) = 20 sin (4t)
[tex]$F_0= 20 \ N$[/tex]
ω = 4 rad/s
[tex]$\omega_n = \sqrt{\frac{k}{m}}$[/tex]
[tex]$\omega_n = \sqrt{\frac{8}{2}}$[/tex]
= 2 rad/s
Therefore,
[tex]$\epsilon = \frac{C}{2 m \omega_n}$[/tex]
[tex]$\epsilon = \frac{1}{2 \times 2 \times 2}$[/tex]
= [tex]$\frac{1}{8}$[/tex]
= 0.125
So, r = [tex]$\frac{\omega}{\omega_n}$[/tex]
= [tex]$\frac{4}{2}$[/tex]
= 2
Steady state response is given by
[tex]$(A)=\frac{F_0 / k}{\sqrt{(1-r^r)^2+(2 \epsilon r)^r}}$[/tex]
[tex]$(A)=\frac{20 / 8}{\sqrt{(1-2^r)^2+(2 \times 0.125 \times 2)^r}}$[/tex]
A = 0.82 m
Which basic principle influences how all HVACR systems work?
A) A decrease in pressure increases the boiling point of liquid, the temperature at which the liquid turns to a gas.
B) An increase in pressure can lower the boiling point of a liquid and change the temperature at which it turns to a gas.
C) An increase in pressure can increase the boiling point of a liquid, the temperature at which the liquid turns to a gas.
D) Pressure affects boiling point and evaporation in an unpredictable way, so it must not be considered in HVACR equipment.
Answer:
B) An increase in pressure can lower the boiling point of a liquid and change the temperature at which it turns to a gas.
Explanation:
B) An increase in pressure can lower the boiling point of a liquid and change the temperature at which it turns to a gas.
The basic principle which influences how all HVACR systems work is that an increase in pressure can increase the boiling point of a liquid, the temperature at which the liquid turns to a gas. Thus, the correct option for this question is C.
What is an HVACR system?An HVACR system may be defined as a type of system that is significantly designed in order to achieve the environmental requirements of the comfort of occupants and a process. These systems are used in different types of buildings such as industrial, commercial, residential, and institutional buildings.
Heating, air conditioning, and refrigeration mechanics and installers, often called HVAC technicians, work on heating, ventilation, cooling, and refrigeration systems that control the temperature and air quality in buildings.
If you're interested in becoming qualified to install heating and cooling systems and you want to know more about the HVAC-R industry, read on for professional definitions and training options.
Therefore, the correct option for this question is C.
To learn more about the HVACR system, refer to the link:
https://brainly.com/question/29996270
#SPJ2
brainiest and 35 points for the RIGHT ANSWER
Which of the following devices is used to determine if an item is horizontal?
a level
a lever
a shank
a clamp
A resistor and a capacitor are connected in series across a 150 Vac supply. When
the frequency is 40 Hz the current is 5 A, and when the frequency is 50 Hz the
current is 6 A. Find the resistance and capacitance for the of the resistor and
capacitor respectively.
Explanation:
for 40hz
since they are in series they will have the same amper
so R=30ohm
C=30F
for 50Hz
R=25
C=25
What Machine Process is #1
Answer:
The first Machine Process is Turning.
Explanation:plz mark brainliest if i am right
Answer:
I believe its turning.
PLEASE HELP!
I'm in the middle of a test and the teacher didn't go over the material!
Answer:
1. 4/d and 1
2. Engineering tech with 3, Engineer with 1, and Scientist with 2
Explanation:
I'm pretty sure but tell me if im wrong
Determine the expected diffraction angle for the first-order reflection from the (113) set of planes for FCC platinum when monochromatic radiation of wavelength 0.1542 nm is used. The radius for platinum is 0.1387 nm.
Answer:
2Θ = 81.34⁰
Explanation:
We have the plane = 113
The material = fcc platinum
Lambda L, = 0.1542
n = 1
Lambda = 2dsinΘ --------(1)
d = a/√h²+k²+l² -------(2)
We have been given the atomic radius to be
R = 0.1387nm
For FCC we have
a = 2R√2
= 2x0.1387x√2
= 0.3923nm
From the second equation
d111 = 0.3923nm/√1²+1²+3²
= 0.3923/√11
= 0.1183nm
From the first equation
0.1542 = 2x0.1183nmSinΘ
0.1542 = 0.2366sinΘ
SinΘ = 0.1542/0.2366
= 0.6517
Θ = Sin-1(0.6517)
= 40.67
2Θ = 81.34⁰
A liquid stream containing 52.0 mole% benzene and the balance toluene at 20.0°C is fed to a continuous single-stage evaporator at a rate of 1120 mol/s. The liquid and vapor streams leaving the evaporator are both at 99.0°C. The liquid phase leaving the evaporator is measured to be 32.5 mole% benzene.If the system obeys Raoult's Law and is in steady state, what are the operating pressure and vapor phase composition?1- P= mmHg2- ybenzene =
Answer:
Operating Pressure P = 793.716 mmHg
Y_Benzene y1 = 0.541
Explanation:
Given that;
liquid phase leaving the evaporator = 32.5 mole%
Equi Temp T = 99.0°C = 99 + 273.15 = 372.15 K
Now let 1 and 2 represent Benzene and Toluene respectively.
Antoine's Constant for these components are;
COMPONENETS A B C
Benzene 1 4.72583 1660.652 -1.461
Toluene 2 4.07827 1343.943 -53.773
Antoine's equation is expressed as;
Ps = 10^(A - (B/(T+C)))
Ps is in Bar and T is in Kelvin
so
P1s = 10^( 4.72583 - (1660.652/(372.15 - (-1.461)))) = 1.7617 Bar
P2s = 10^( 4.07827 - (1343.943/(372.15 - (-53.773)))) = 0.7195 Bar
now here, liquid leaving and vapor are both in equilibrium
composition of liquid leaving are;
X1 = 32.5% = 0.325
X2 = 1 - X1 = 1 - 0.325 = 0.675
Now
Raoult's Law is expressed as;
p × y1=x1 × pis for all components
So for Benzene ; p × y1=x1 × p1s ------let this be equation 1
for Toluene ; p × y2=x2 × p2s ------let this be equation 2
lets add equ 1 and 2
p × y1=x1 × p1s + p × y2=x2 × p2s
p(y1 + y2) = x1 × p1s + x2 × p2s
buy y1 + y2 = 1
therefore we substitute
p(1) = 0.325 × 1.7617 + 0.675 × 0.7195 = 1.0582 Bar
we know that 1 Bar = 750.062 mmHg
so p = 1.0582 × 750.062
p = 793.716 mmHg
Also from equation 1
p × y1=x1 × p1s
y1 = (x1 × p1s) / p
y1 = (0.325 × 1.7617) / 1.0582
y1 = 0.541
Therefore;
Operating Pressure P = 793.716 mmHg
Y_Benzene y1 = 0.541
1. What are the 2 circuits of a relay called?
Example 5 10, P 236 9th edition Refrigerant 134 a at 700 kPa , 70 deg C and 8 kg/min is cooled by water in a condenser until it exists as a saturated liquid at the same pressure. The cooling water enters the condenser at 300 kPa and 15 deg C and leaves at 25 deg C at the same pressure. Determine the mass flow rate of the cooling water required to cool the refrigerant.
Solution :
The mass flow rate of the cooling water is determined from the energy balance equation. The enthalpies of the refrigerant at the initial and the final states were obtained from A-13 and A-12 for the given parameters.
Therefore by energy balance equation,
[tex]$\dot m_r h_{r1}=\dot m_w \Delta h_w +\dot m_r h_{r2} $[/tex]
[tex]$\dot m_w = \frac{\dot m(h_1-h_2)_r}{c \Delta T}$[/tex]
[tex]$\dot m_w = \frac{8(308.34-88.82)}{4.18 \times 10}$[/tex]
= 42 kg / min
Which of the following is NOT a peripheral?
Input devices
Output devices
CPU devices
Input/Output devices
Answer:
I believe that cpu devices are not considered peripherals
Explanation:
From google: A peripheral or peripheral device is an ancillary device used to put information into and get information out of the computer.
One way to improve the fuel efficiency of a car is to use tires that have a lower rolling resistance—tires that roll with less resistance. Highway tests at 65 mph showed that tires with the lowest rolling resistance can improve fuel efficiency by nearly 2 mpg (miles per gallon). Consider a car that gets 35 mpg on high-rolling-resistance tires and is driven 15,000 miles per year. For a fuel cost of $3.5/gal, determine how much money will be saved per year by switching to low-rolling-resistance tires.
Answer: It will be saved $81 per year.
Explanation: A car without the tires, that gets 35mpg and is driven 15,000 miles per year, will have a fuel cost of:
1 gal ---- 35 miles
x gal ---- 15,000 miles
x = [tex]\frac{15,000}{35}[/tex]
x = 428.57 gal
Per year, 1 gal costs $3.5, then:
cost = 428.57*3.5
cost = 1500
The car with the tires, improve the efficiency in nearly 2mpg, i.e.:
efficiency = 35 + 2 = 37mpg
1 gal ----- 37 miles
y gal ----- 15,000 miles
y = [tex]\frac{15000}{37}[/tex]
y = 405.40 gal
Per year:
cost = 405.40*3.5
cost = 1419
The difference in costs is:
d = 1500 - 1419
d = 81
With lowest rolling resistance tires, a car will save, per year, $81.
What is the difference between a cost and a benefit?
Answer:
A cost is something you have to give up or sacrifice and a benefit is something that is gained or is helpful.
Explanation:
In a cost-benefit analysis of a system, an engineer is to simply look at the requirements for the system and determine the costs to build the system, both in financial value and energy value. Additionally, the engineer needs to determine the benefits that would come from choosing a particular path of cost. If the benefits outweigh the cost for the project, then the solution is accepted. Else, the cost outweighs the benefit and the solution is rejected.
Air is saturated with water vapor at 35.0 oC and a total pressure of 1.50 atmospheres. If the molar flow rate of the dry air in this stream is 300 mols per minute, what is the molar flow rate of water vapor in the stream?
Answer:
11.541 mol/min
Explanation:
temperature = 35°C
Total pressure = 1.5 * 1.013 * 10^5 = 151.95 kPa
note : partial pressure of water in mixture = saturation pressure of water at T = 35°c )
from steam table it is = 5.6291 Kpa
calculate the mole fraction of H[tex]_{2}o[/tex] ( YH[tex]_{2}o[/tex] )
= 5.6291 / 151.95
= 0.03704
calculate the mole fraction of air ( Yair )
= 1 - mole fraction of water
= 1 - 0.03704 = 0.9629
Now to determine the molar flow rate of water vapor in the stream
lets assume N = Total molar flow rate
NH[tex]_{2}o[/tex] = molar flow rate of water
Nair = molar flow rate of air = 300 moles /min
note : Yair * n = Nair
therefore n = 300 / 0.9629 = 311.541 moles /min
Molar flowrate of water
= n - Nair
= 311.541 - 300 = 11.541 mol/min
A chemical process converts molten iron (III) oxide into molten iron and carbon dioxide by using a reducing agent of carbon monoxide. The process allows 10.08 kg of iron to be produced from every 16.00 kg of iron (III) oxide in an excess of carbon monoxide. Calculate the percentage yield of iron produced in this process.
Answer:
percentage yield = 63%
Explanation:
The yield efficiency or percentage yield measure the amount of products that are formed from a given amount of reactant. For a percentage yield of 100, all the reactants are completely converted to product. Mathematically, the percentage yield is given by:
[tex]percentage\ yield = \frac{Actual\ yield}{expected\ yield} \times 100\\Actual\ yield = 10.08kg\\Expected\ yield= 16.00kg\\\\\therefore percentage\ yield = \frac{10.08}{16.00} \times 100 = 63 \%[/tex]
Anything you want to do in Hootsuite can be found in the ________, with the main workspace in the _________?
Settings; Streams
Sidebar; center
Header; Sidebar
Nav-panel; dashboard
Answer:
Anything you want to do in Hootsuite can be found in the ___ Sidebar_____, with the main workspace in the ___center______
Sidebar; center
Explanation:
The main workspace of the Hootsuite is located in the center. The sidebar is where the core access to the Hootsuite functionality, like Streams, Inbox, Planner, Analytics, Publisher, and the App Directory, is obtained. Hootsuite is a media management platform for curating content, scheduling posts, managing team members, and measuring performances.
please I need dhelp asap
What is the shape of an airplane wing called?
air raid
airport
airfoil
Answer:
the answer is airfoil
Explanation:
hope the answer helps
Answer:
It is called the airfoil
Explanation:
The answer is D. ( airfoil) because an airport is a place. Air raid is a attack in the air and that only leaves airfoil, so airfoil is the correct answer.(Hoped that helped)
The entropy of the working fluid of the ideal Carnot cycle (increases, decreases, remains the same) during the isothermal heat rejection process. (Explain the reasoning behind your answer selection!)
Answer:
Decreases
Explanation:
The Entropy change for a reversible process is;
ΔS = nRIn(V_b/V_a)
Now, applying this formula to an isothermal expansion in an irreversible process, it will have same initial and final states as we got for the reversible expansion process. Now, due to the fact that entropy is a state function, the change in entropy of the system will be the same as we got for the equation in reversible process and is given by the same formula.
In both the reversible and irreversible process, the surroundings of which they differ by the entropy there are usually at a constant temperature, T in a way that we have the change jn entropy relationship as;
ΔS_sur = −Q/T
Where;
- the negative sign is used since the heat transferred to the surroundings is equal in magnitude and opposite in sign to the heat, Q, transferred to the system.
Thus, it is clear that the change in the entropy decreases due to the negative sign.
How many coordinates are required for a 3-dimensional force?
Una barca intenta cruzar un río. La barca lleva una velocidad de 3 m/s con dirección perpendicular a la de la velocidad del agua que es de 4 m/s. Si el ancho del río es de 120 m. El tiempo en llegar a la otra orilla es de:
Answer:
El tiempo que tarda la barca en llegar a la orilla es 40 s.
Explanation:
Debido a que el río se mueve en dirección perpendicular a la barca, ésta se va a mover de manera diagonal, cuya velocidad ([tex]v_{b_{d}}[/tex]) viene dada por:
[tex]|v_{b_{d}}| = \sqrt{v_{r}^{2} + v_{b}^{2}} = \sqrt{(4)^{2} + (3)^{2}} = 5 m/s[/tex]
Por lo tanto, el módulo del vector velocidad diagonal es 5 m/s, y su dirección es:
[tex]tan(\alpha) = \frac{v_{r}}{v_{b}} = \frac{4}{3}[/tex]
Entonces, α es:
[tex] \alpha = arctan(\frac{4}{3}) = 53.13 ^{\circ} [/tex]
Ahora, debemos encontrar la distancia de la longitud diagonal que recorre la barca:
[tex] cos(\alpha) = \frac{a}{d_{d}} [/tex]
[tex] d_{d} = \frac{a}{cos(\alpha)} = \frac{120 m}{cos(53.13)} = 200.0 m [/tex]
Finalmente, el tiempo que le tomaría a la barca recorrer 200 m sería:
[tex]v_{b_{d}} = \frac{d_{d}}{t}[/tex]
[tex] t = \frac{200 m}{5 m/s} = 40 s [/tex]
Por lo tanto, el tiempo que tarda la barca en llegar a la orilla es 40 s.
Espero que te sea de utilidad!
What are the two tools used to create an HTML code? Name one example of each tool.
Answer:
please mark me as BRAINLIEST
Explanation:
There are so many software packages available to develop HTML. The software packages can be grouped into two main categories: text-based (or code-based) editors.
...
WYSIWYG editors
Macromedia Dreamweaver.
Microsoft FrontPage.
Adobe GoLive.
Waterjet cutting uses a _____. a) Very-small-diameter jet of water that exits the cutting nozzle at approximately the speed of sound. b) Diamond cutting wire cooled by a waterjet which also carries away the composite material as a slurry. c) Very-small-focused-stream of water that oscillates at 20,000 cycles per second.
Answer:
a
Explanation:
Waterjet cutting uses a very-small-diameter jet of water that exits the cutting nozzle at approximately the speed of sound. A water jet cutter, is oftentimes simply called a water jet is an industrial tool, like its name suggests, with the capabilities of cutting a different types of materials. Like its name suggests again, it uses water, although an extremely high-pressure jet of water to do the cutting. Other times, it uses a mixture of water and an abrasive substance to facilitate the cutting.
When asked about favorite Thanksgiving leftovers, 9% of the people said turkey and 7100 said mashed potatoes. Which food is more popular? How do you know?
Answer:
how many people were asked though
Explanation:
An electronic device, such as a power transistor mounted on a finned heat sink, can be modeled as a spatially isothermal object with internal heat generation and an external convection resistance. (a) Consider such system of mas M, specific heat c, and surface area As, which is initially in equilibrium with the environment at To. Suddenly, the electronic device is energized such that a constant heat generation Eg(W) occurs. Show that the temperature response of the device is: θ = exp RC where θ Ξ T-T(w): T(oo) is the steady-state temperature corresponding to t → oo; 0Ti T(; T: initial temperature of the device; R: thermal resistance 1/hAs; and C: thermal capacitance Mc. (b) An electronic device, which generates 60W of heat, is mounted on an aluminum heat sink weighing 0.31 kg and reaches a temperature of 100°C in ambient air at 20°C under steady- after the power is switched on?
Answer:
hello your question is incomplete attached below is the complete question
answer :
a) attached below
b) 63.71°c
Explanation:
A) Given data
The system has ; mass ( M ) , specific heat capacity , and surface area
attached below is a detailed solution
B) Given data
power generated = 60w
weight of heat sink = 0.31 kg
temperature given = 100°c
temp in ambient air = 20°c
lets take
specific heat capacity = 918.18 J /kg-k
density = 2702 kg/m^2
attached below is the detailed solution
How much does 1 gallon of water weigh in pound given that the density of water is 1gram/ cm3
Explanation:
There are 8.35 pounds in a gallon of water. Water weighs 1 gram per cubic centimeter or 1 000 kilogram per cubic meter, i.e. density of water is equal to 1 000 kg/m³; at 25°C (77°F or 298.15K) at standard atmospheric pressure.
• Differentiate between laboratory and industrial reactors
Answer:
A reactor is a piece of equipment in which the feedstock is converted to the desired product. Reactors are chosen such that they meet the requirements imposed by the reaction mechanisms, rate expressions, and the required production capacity. Other parameters that must be determined to choose the correct type of reactor are reaction heat, reaction rate constant, heat transfer coefficient, and reactor size. Reactors that are free of the effect of the macro-kinetic properties are classified as: batch isothermal perfectly stirred reactor, batch adiabatic perfectly stirred reactor, semi-batch perfectly stirred reactor, continuous isothermal perfectly stirred reactor flow reactor, continuous adiabatic perfectly stirred flow reactor, continuous isothermal plug flow reactor, and continuous adiabatic plug flow reactor.
