Answer:
Opportunity cost she loses the chance to get the degree. The trade- off is she gets to start a business.
Explanation:
The uniform girder AB has a mass of 8 Mg. Determine the internal axial, shear, and bending-moment loadings at the center of the girder if a crane gives it an upward acceleration of 3 m>s2.
Answer:
Girder:
+↑ΣFy=may; 2Tsin60°−8000(9.81) = 8000 (3) T= 59166.86N ↑ΣFy=may ;\quad \quad \quad 2T \sin { 60° }- 8000(9.81) = 8000(3)\\ T = 59 166.86 N+↑ΣFy=may;2Tsin60°−8000(9.81)=8000(3)T=59166.86N
Segment:
→+ΣFx=max;59166.86cos60°−N=0N=29.6kN+↑ΣFy=may;59166.86sin60°−4000(9.81)+V=4000(3)V=0↪+ΣMC=Σ(Mk)C;M+4000(9.81)(1)–59166.86sin60°(2)=–4000(3)(1)M=51.2kN⋅m\overset { + }{ \rightarrow } \Sigma { F }_{ x }=ma_{ x };\quad \quad \quad 59166.86\cos { 60° } -N=0\\ N = 29.6 kN\\ +\uparrow \Sigma { F }_{ y }=ma_{ y };\quad \quad \quad 59 166.86 \sin { 60° }- 4000(9.81) + V = 4000(3)\\ V = 0\\ \hookrightarrow +\Sigma { M }_{ C }=\Sigma ({ M }_{ k })_{ C };\quad \quad M + 4000(9.81)(1) – 59 166.86 \sin { 60° }(2) = – 4000(3)(1)\\ M = 51.2 kN \cdot m→+ΣFx=max;59166.86cos60°−N=0N=29.6kN+↑ΣFy=may;59166.86sin60°−4000(9.81)+V=4000(3)V=0↪+ΣMC=Σ(Mk)C;M+4000(9.81)(1)–59166.86sin60°(2)=–4000(3)(1)M=51.2kN⋅m
Explanation:
We know that Newtow Third's Law is F=ma, so we can solve for the tension on the side with that and the acceleration given in the y.
After that depending on which section of girder you chose there is a shear force and a normal force as well as a moment on the inside of it, meaning the middle of it, since is uniformly distributed, breaking down on the left the shear force is usually up, and the normal to the right, the moment counterclockwise, so from then is just a matter of doing the sumation of forces on the y and x and the summation of the moments, just remember to account for now being half of the total mass, we still have acceleration on the y, so the summation of moments will equal summation of kinetic moments, where we take into account every force that is trying to make it move, in this case, half the mass of the grinder and the acceleration going up, hope it helps you.
function of oil seal and sealant.
Answer:
oil seals function is To act as a physical barrier retaining the lubricating oil where it is bound to be.
Sealants function is to Fill a gap between two or more substrates .
Explanation:
Technician A states that the wider the gap on an A/C clutch, the greater the electrical resistance measurement is observed when checking the windings. Technician B states that a wide clutch gap causes the compressor to remain engaged. Who is correct
Technician B is correct because it's true that a wide clutch gap in an A/C clutch would cause the compressor to remain engaged.
What is an A/C clutch?An A/C clutch can be defined as a mechanical device that is designed and developed for the conversion of energy generated by the engine and delivers it to the compressor.
For instance, when an air conditioner (A/C) is turned on, the clutch becomes engaged and it begins to spin rapidly and constantly, so as to transfer power to the air conditioner (A/C).
In conclusion, technician B is correct while technician A is wrong because it's true that a wide clutch gap in an A/C clutch would cause the compressor to remain engaged.
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Which - type of service shop is least likely to provide service to all
makes and models of vehicles?
of
Select one:
A. Chain store
B. Tire store
C. Independent repair shop
D. All of the above
E. None of the above
A _____________ is a system that uses vertical posts which are separated to support a horizontal beam.
The steel-frame structural support was a main feature in the development of __________. Group of answer choices
The steel-frame structural support was a main feature in the development of t the floors, roof, walls and skyscraper.
What structure is aided by a metal frame?Steel frame is known to be a form of a building method that is used along with a skeleton frame that is made up of steel columns and I-beams.
Conclusively, This is often used in the construction of grid to aid the floors, roof and walls of any kind of building. It is also used in the construction of skyscraper.
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Mixing ratio, relative humidity, and dew-point temperature are all ways of measuring the amount of ________ in the air.
While, Do...while, and For loops can best be characterized as which of the following?
the three main repetition structures in Java
the three best repetition structures in Java
the three easiest repetition structures in Java
the three most logical repetition structures in Java
Answer:The three main repetition structure structures in Java
Explanation:
When thrust faults occur, the region undergoing stress is subject to: Group of answer choices compression tension shearing No answer text provided.
When thrust faults occur, the region undergoing stress is subject to compression stress.
What is compression stress?Compressive stress is a force that causes a substance to deform in order to take up less space.
When thrust faults occur, the region undergoing stress is subject to compression stress. A substance is said to be under compression when it is subjected to compressive stress.
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Why are cars often called by numbers, like the BMW 428i or Nissan NV2500?
Answer: BMW did it again. They've show up with yet another automobile that's a genuine joy to operate a vehicle. The BMW 428i Coupe isn't so large , not to little - and it's got the elegant sport appearances of a coupe as well. Really, very pleasant really!
Explanation:
3. All companies, small or large, are required to have a written fire prevention plan.
A) O True
B)O False
Answer:
A) True
Explanation:
Answer:
A. true
Explanation:
cause if they dont they could possibly get sgut down for safety hazards and violations of its' employee. And there could be a asccident because there was no safety.
The concept that states the equivalency of two voltage sources means that for any given load resistance connected to the two sources, the same load voltage and load current are produced by both sources is called:
Answer:
Terminal equivalency
Explanation:
A 1.5-kg specimen of a 90 wt% Pb-10 wt% Sn alloy (Animated Figure 9.8) is heated to 250°C; at this temperature it is entirely an α-phase solid solution. The alloy is to be melted to the extent that 50% of the specimen is liquid, the remainder being the α phase. This may be accomplished either by heating the alloy or changing its composition while holding the temperature constant.
Answer:
A. By hit and trial method 280 C
Explanation:
ion know B sorry
Using the Breguet range and endurance equation, estimate the amount of kerosene
fuel needed for an aircraft weighing 10 metric tons (this is the dry weight that
includes passengers and cargo) to fly from Boston to Los Angeles, assuming a
distance of 5,000 [km], flying at 300 [m/s].
Assume a lift-to-drag ratio of 15 - this is the ratio of lift force over drag force during
the cruise, the overall efficiency of 0.3, and about half of the standard air density at
an altitude of approximately 6,000 [m]. You can neglect the climb and descent
phases of the flight. The energy density of kerosene is provided in Module 9, section
3: "The Breguet range and endurance equation". Why is this a tricky calculation?
The amount of kerosene fuel needed for an aircraft weighing 10 metric tons to fly from Boston to Los Angeles, assuming a distance of 5,000 [km] is 10000 kg.
What is Breguet equation?Breguet equation is used to determine the range of airplane fly in some specified set of parameters.
[tex]R=\dfrac{h_f}{g}\dfrac{L}{D}\times \eta \ln \left(\dfrac{W_{initial}}{W_{final}}\right)[/tex]
Here, (L/D) is lift to drag ratio, g is gravitation acceleration, h is height and W is weight.
The weight of aircraft is 10 metric tons (this is the dry weight that includes passengers and cargo) The distance of 5,000 [km], with velocity at 300 [m/s] from Boston to Los Angeles has to be cover by the airplane.
The initial weight is 10 metric tons or 10000 kg. Thus, the final weight with total fuel burn is,
[tex]W_{final}=W_{initial}-W_{fuel}\\W_{final}=1-\dfrac{W_{fule}}{W_{initial}}[/tex]
The lift-to-drag ratio is 15 and the overall efficiency is 0.3, The standard air density at an altitude of approximately 6,000 [m] is half.
Thus, put the values, in above formula,
[tex]5000=\dfrac{6000}{9.81}(15)\times(0.3) \ln \left(\dfrac{10000}{1-\dfrac{W_{fuel}}{10000}}}\right)\\[/tex]
[tex]\ln \left(\dfrac{10000}{1-\dfrac{W_{fuel}}{10000}}}\right)=1.8167\\\ln \left(\dfrac{1}{10000-W_{fuel}}}\right)=1.8167[/tex]
Solving this equation, we get,
[tex]W_{fuel}=10000\rm\; kg\\[/tex]
Thus, the amount of kerosene fuel needed for an aircraft weighing 10 metric tons to fly from Boston to Los Angeles, assuming a distance of 5,000 [km] is 10000 kg.
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In a pulley you pull more rope so that you use ___ effort.
Answer: D i just got off this question
Question 1 of 10
Which type of cloud is made up of both liquid water droplets and ice crystals?
• A. Cirrostratus
• B. Stratus
• C. Cirrus
• D. Cumulonimbus
SUBMIT
Answer:
[D] Cumulonimbus
Explanation:
When the top of a cumulus reaches above, the water droplets are transformed into ice crystals and it loses its clear, sharp outline. It transformed into ice crystals because when it reaches it height the place is cold. As well as at this stage the cloud has become a cumulonimbus. And thus, the type of cloud is made up of both Liquid water droplets and ice crystals are called Cumulonimbus.
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Kavinsky
Answer:
D. Cumulonimbus
Explanation:
A full wave bridge rectifier is used to charge a battery of 24 V and 120 W-H. If the supply voltage with 220 V is used to feed the full-wave rectifier with 4:1 rectifier transformer, find: a) The diode conduction angle b) The value of current limiting resistor for 10 A (DC current) flows through battery c) The charging time in hours d) The power loss through the current limiting resistor e) The circuit efficiency
Answer:
the answer is
100 Hz
Which way do you turn the wrench to tighten the insert on this cam type holder?
Answer:
right !
Explanation:
water "bubbles up" h2 = 9 in. above the exit of the vertical pipe attached to three horizontal pipe segments. The total length of the 1.75-in.- diameter galvanized iron pipe between point (1) and the exit is 21 inches. Determine the pressure needed at point (1) to produce this flow.
Assume h3 = 18 in.
The pressure needed at point (1) to produce the flow where water "bubbles up above the exit of the vertical pipe attached to three horizontal pipe segments is 0.750 psi.
What is Bernoulli's equation?The Bernoulli's equation for incompressible fluid can be given as,
[tex]P_1+\dfrac{1}{2}\rho v_1^2+\rho gh_1=P_2+\dfrac{1}{2}\rho v_2^2+\rho gh_2[/tex]
Here, ρ is density of fluid, g is acceleration due to gravity, (P) is the pressure v is velocity, h is height of elevation and subscript (1 and 2) is used for point 1 and 2.
Water "bubbles up" h2 = 9 in. Above the exit of the vertical pipe attached to three horizontal pipe segments.
The total length of the 1.75-in.- diameter galvanized iron pipe between point (1) and the exit is 21 inches. h3 = 18 in.
Reynolds number is,
[tex]R_e=\dfrac{V_3D}{v}\\R_e=\dfrac{4.01\dfrac{0.75}{12}}{1.21\times10^{-15}}\\R_e=2.07\times10^4[/tex]
The formula for the ratio of pressure to radius, when pressure and velocity at point 2 is zero can be given as,
[tex]\dfrac{p_1}{r}=z_2\left(f\dfrac{l}{d}+\sum k_L\right)\dfrac{v^2}{2g}-\dfrac{v_1^2}{2g}[/tex]
Here, f=0.039 and ∑K(L)=4.5. Put the values,
[tex]\dfrac{p_1}{r}=\dfrac{7}{12}\left(0.03\dfrac{21}{0.75}+4.5-1\right)\dfrac{4.01^2}{2\times32.2}\\\dfrac{p_1}{r}=1.73\rm\; ft[/tex]
Put the value of r we get,
[tex]p_1=62.4\times1.73\\p_1=108\rm\; ib/ft^2\\p_1=0.750\rm\; psi[/tex]
The pressure needed at point (1) to produce the flow where water "bubbles up above the exit of the vertical pipe attached to three horizontal pipe segments is 0.750 psi.
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A hydroelectric dam contains all of the following EXCEPT ________. rotors generators turbines a combustion chamber magnets
A hydroelectric dam contains rotors, generators, turbines, and magnets; EXCEPT a combustion chamber.
What is a hydroelectric Dam?A hydroelectric dam is a key component of any hydroelectric facility. A typical dam stores water behind it in a man-made lake or reservoir. When water is released through the dam, it drives a turbine, which is linked to a generator, which generates power.
A hydroelectric dam contains the following components rotors, generators, turbines, and magnets. But it does not contain a combustion chamber.
Hence, A hydroelectric dam contains rotors, generators, turbines, and magnets; EXCEPT a combustion chamber.
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10.9 Determine the critical load of a round wooden dowel that is 0.9 m long and has a diameter of (a) 10 mm, (b) 15 mm. Use E
these categories
THE NATURE OF MATERIALS
Review Questions
2.1
The elements listed in the Periodic Table can be divided into three categories. What are these categories and give an example of each?
Answer
. The three types of elements are metals (e.g., aluminum), nonmetals (e.g., oxygen), and semimetals
Using a definition of the limit of function, prove that the following functions are continuous
at = 0:
) () = 1 − 2 + 52, 0 = 1
Answer:
... you gotta do divson?
Explanation:
Which explanation best summarizes what went wrong during Paul’s cost analysis?
Paul is developing a new automobile. His cost analysis took into consideration the costs of materials, insurance, and labor. Suddenly, unanticipated bills have begun coming in, putting his project far over budget.
He forgot to include direct costs such as advertising, legal fees, and repairs.
He forgot to include circumstances such as employee vacations and faulty materials.
He forgot to include indirect costs such as advertising, legal fees, and repairs.
He forgot to include circumstances such as attrition and failure of delivery of materials
Answer:
The correct answer is He forgot to include indirect costs such as advertising, legal fees, and repairs.
Explanation:
A retail business, owned by share holders and having centralized decision making for their multiple store locations is called:
MARKING BRAINLIEST
What is a good prototype plan?
Answer:
The plan is to make your design on AutoCAD and then make technical drawings. Print those technical drawings out with a scale of 1:1 and use those to trace over wood or metal.
Explanation:
Answer:
Make your design, make technical drawings, 3D print or trace
Explanation:
A wheelbarrow full of concrete mix that needs to be moved onto a platform could be moved either by lifting it above the ground and setting it onto the platform or by using an inclined plane. The advantage of using the inclined plane is that the work can be done -
The force over the inclined plane required to elevate the barrow is less than the straight surface as there was the tangential gravitational force acting on the barrow.
What is force?The force is the push or pulls experienced by the object when interacting with the other object. The force applied is calculated with respect to the force experienced by the object.
On moving the wheelbarrow over a straight surface, the gravitational force acting over it requires more force to elevate it in the opposite spatial relation.
Over the inclined plane, the wheelbarrow experiences the tangent of the gravitational force over it, and less force is required to elevate the barrow to the same level as the straight surface.
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A firm is considering investing in a new piece of material handling equipment that should save on the current annual labor cost of moving the materials by hand. The device costs $750 can be expected to result in $500 annual savings for years 1, 2, and 3; then, it will have worn out and have to be replaced. Assume the interest rate that determines time value of money for this firm is 7%
Required:
a. What is the payback period for the expenditure of the $1000?
b. Calculate the present worth (PW) of the three years of savings, assuming the savings occur at the end of each year of ownership.
c. Calculate the net present worth (NPW) of the investment.
d. Based on your answers to į and iii, should the firm invest in the equipment?
Answer:
current sales are 15 millon
Explanation:
Choose the statement that correctly describes the circuit below. image is not found a. The above circuit is invalid because nMOS and pMOS transistors cannot be used in the same circuit. b. The circuit is composed of 1 pMOS and 2 nMOS transistors. c. If control input a
The statement that correctly describes the circuit is the circuit provided is an example of a CMOS circuit.
What is a CMOS circuit?The CMOS circuit is a term that is often known as "Complementary Metal Oxide Semiconductor."
This is known to be a machine that create integrated circuits and it is one that is often seen a a lot of electronic component and as such, the the circuit provided is an example of a CMOS circuit.
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Technician A uses three prong electrical cords when possible.
Technician B uses double insulated electrical tools. Which technician
is correct?
Select one:
A. Technician A only
B. Technician B only
C. Both technicians
D.Neither technician
Can someone explain it to me!
Answer:
It will be B
Explanation:
Since resisitors in series are added together, 1 + 1 + 1 would = 3kilo ohms. But with resistors in parallel would be (1/1+1/1)^-1. That would equal 0.5 Now you have two resistors in series for B, and because now that they are in series you add them together, so 0.5 + 1 = 1.5 kilo ohms which is what is needed.