For infinite fatigue life, the alternating shear stress maximum is equal to 0.5 MPa.
What causes the most shear stress?The maximum shear stress is the amount of shear force that can be focused in a relatively compact space. Any structural part that experiences shear force from an external force acting in a direction that is opposed to and out of alignment with internal forces
What is the stress equation?The units would predict that stress is calculated by dividing the force by the area where it was generated, and since this area ("A") can be either axial or sectional, the fundamental stress equation is " = F/A."
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given an aligned carbon fiber reinforced composite with a nylon 6,6 polymer matrix, which have tensile strengths of 4000 and 76 mpa, respectively, what volume fraction of fibers are needed to achieve a tensile strength of 200 mpa when a longitudinal load is applied (i.e. load is parallel to the fiber direction)?
[tex]V_{F}[/tex] (Volume Fraction) will be 0.14436 and Tensile strength weill be 620.222 MPa.
What is Tensile strength?
Tensile strength is a material's ability to withstand a pulling (tensile) force and refers to a material's breaking strength when a force capable of breaking many strands of the material simultaneously is applied at a constant rate of extension/load. It is typically expressed in units of force per cross-sectional area.
Tensile strength is the amount of load or stress that a material can withstand before stretching and breaking. Tensile strength, as the name implies, is a material's resistance to tension caused by mechanical loads applied to the material. One of the most important and widely measured properties of structural materials is their ability to resist breaking under tensile stress.
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technician a uses a small hole gauge and micrometer to measure the inside diameters of small bores. technician b uses a dial caliper to take depth measurements. who is correct?
Both technician A and technician B are correct.
A small-hole gauge is referred to as a measuring tool with a round expandable head. The small-hole gauge is used together with an outside micrometer to measure the inside of small holes. Thus, technician A is correct who uses a small hole gauge and micrometer to measure the 'inside diameters' of small bores.
Depth can be measured using a dial caliper in which the depth rod is inserted into the hole being measured. Hence, technician B is correct who uses a 'dial caliper' to take depth measurements.
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The primary of an ideal transformer with a turns ratio n of 5 is connected to a voltage source with Thevenin parameters vTh = 10 cos2000t V and RTh = 100 Ω. Determine the average power P delivered to a 520 Ω load connected across the secondary winding.The average power P = ?? mW
According to Thevenin's Theorem, we get The average power P we get 2000 cos² 2000t
What is Thevenin’s theorem?According to Thevenin's Theorem, a voltage source connected in series with a resistor can be used to represent any two terminal linear network or circuit. Thevenin's equivalent circuit is what it is called. Independent sources, dependent sources, and resistors are all possible components in a linear circuit.Thevenin's theorem is helpful for studying electrical power systems and other circuits that have a variable resistor, or "load" resistance. With each trial value of load resistance, the circuit must be recalculated in order to ascertain the voltage across and current flowing through it.given :
a turns ratio n = 5
Thevenin parameters vTh = 10 cos2000t
RTh = 100 Ω.
resistance in secondary winding = 540 Ω.
P = V ² R.
= (10 cos2000t )² .100
= 10000 cos² 2000t
secondary coil ratio 5
p= 2000 cos² 2000t
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An inflow hydrograph is given for a reservoir that has a weir-spillway outflow structure. The flow through the spillway is governed by the equation ) Q = 3.75Ly3/2 (cfs), where L is the length of the weir and y is the height of the water above the spillway crest. The storage in the reservoir is governed by S = 300y (ac-ft). Using A1 = 10 hr, L = 15 ft, and So = lo = 0, route the inflow hydrograph through the reservoir using the storage indication method. Time (hr) Inflow (cfs) 12 24 36 48 60 72 84 96 108 120 132 144 156 40 35 37 125 340 575 722 740 673 456 250 140 10
A hydrograph is a graph that shows the stream flow over time. The inflow hydrograph of the given question is given below.
What is a graph?In discrete mathematics, more specifically in graph theory, a graph is a structure that amounts to a set of objects in which some pairs of the objects are conceptually "related."
The objects correspond to mathematical abstractions known as vertices (also known as nodes or points), and each of the related pairs of vertices is known as an edge (also called link or line).
In diagrammatic form, a graph is typically represented as a collection of dots or circles for the vertices and lines or curves for the edges. In discrete mathematics, graphs are one of the topics of study.
Inflow and outflow hydrograph through the reservoir using the storage indication method (see the attachment).
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principles of passive elements, passive circuits operation (rc, lc, rlc) their time domain and frequency response
Yes, the above statement is True.
What are rc,ls, rlc?Passive elements are electrical or electronic components that do not require an external source of power to function.
Examples of passive elements include resistors, capacitors, and inductors. Passive circuits are circuits that are composed solely of passive elements.
The time domain behavior of a passive circuit is determined by the values and arrangement of the passive elements in the circuit, as well as the input signals applied to the circuit. The frequency response of a passive circuit is the relationship between the input and output signals of the circuit as a function of frequency.
In general, the time domain and frequency response of a passive circuit can be analyzed using circuit analysis techniques, such as Kirchhoff's laws, Ohm's law, and the laws of capacitance and inductance. These principles allow us to predict the behavior of a passive circuit in response to various input signals.
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when checking for continuity between a circuit breaker and the neutral bar of a panelboard using a continuity tester, positive continuity is indicated. the reason may be
The cause could be that a conductor is grounded, a lamp or appliance is on, or both.
Where is the continuous current rating on circuit breakers typically marked?The ampere rating of circuit breakers (typically marked on the end of the operating handle). The breaker can handle this much continuous current without going above its rating. The ampere rating of the circuit breaker should, in general, match the ampacity of the conductor.
How can the continuity of a new breaker be checked?Set your multimeter to the ohms or resistance settings to assess the resistance of a circuit breaker. Next, connect one lead to the supply terminal or clip and the other to the screw terminal. When you flip the breaker on, it should read as having resistance, and when you turn it off, it should have no rating.
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Please show all steps please
The resultant force will be F = 6i-j-14k , Therefore f1 and f2 are in cartesian form.
What is the resultant force?Rectangular components or Cartesian components are vector components that run along orthogonal axes. A vector decomposed into its rectangular components can be expressed using either the scalar notation or the Cartesian vector notation.The coordinates of the Free-body diagram points are given as
0=(0,0,0) m
A=(0.15,0,0.3) m
B=(0,-0.25,0.3) m
Therefore the position vector of OA will be.
roa = (0.15-0)i +(0-0)j +(0.3–0)k
= 0.15i +0j +0.3k
Then the position vector of OB,
rob =(0-0)i +(-0.25 - 0); +(0.3–0)k
= 0i -0.25j +0.3K
So,
The equivalent resultant force can be expressed as,
F = F1+ F2
By substituting,
6i - 3j -10k for F1, and 2j -4K for F2.
F =6i -3j -10k +2j - 4k
= 6i - 1j -14k
Hence the resultant force is F = 6i-j-14k , which is cartesian form.
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technician a says that when the truck brakes are applied, the more severe the braking force, the greater the role played by the front brakes. technician b says that it is mandatory for current trucks to include the front brakes in the abs loop. who is correct?
Technician B is correct.
Who is a technician?
A professional with training in the methods and skills associated with a particular area of technology and a working knowledge of the underlying engineering principles is known as an engineering technician.
A technician might create prototypes, carry out research and experiments, and design and test equipment, depending on the field.
Along with problem-solving, strategy development, and quality control, technical engineers also carry out these tasks. In order to design, develop, test, and produce tools, engines, machines, and other devices, mechanical engineers need the assistance of technicians and technologists in the field.
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an ice cube with a small solid steel sphere frozen inside floats in a glass of water filled to the brim. what happens to the level of water in the glass as a result of the ice melting?
As the ice cube with the steel sphere frozen inside melts, the level of water in the glass will rise.
Why does the level of water rise?the ice cube with the steel sphere frozen inside melts, the level of water in the glass will rise because the steel sphere has a greater density than the water in the glass, so when it is frozen inside the ice cube, the ice cube will be less dense than the water and will float on the surface.
However, as the ice cube melts, the steel sphere will become exposed and will sink to the bottom of the glass, increasing the overall density of the water and causing the water level to rise.
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Ramon, a software engineer at Frensen Inc., needs to develop high-quality graphic illustrations for presentation at his next team meeting. In the context of application software, he must use ____ software to accomplish thi:sA desktop publishing B spreadsheet C database D word processing
In the context of application software, he must use desktop publishing software to accomplish this. Therefore, the correct answer option is: A. desktop publishing.
What is an application software?In Computer technology, an application software can be defined as a type of software program which is designed and developed to enable end users perform a variety of tasks on a computer system such as desktop publishing (DTP).
What is Microsoft Publisher?Microsoft Publisher can be defined as a desktop publishing application software or program that is designed and developed by Microsoft Inc., in order to avail its end users an ability or opportunity to work on page layout and graphic design such as a flier or graphic illustrations for presentation.
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A 75-hp, 850 r/min, 500-V series motor has an efficiency of 90.2 percent
when operating at rated conditions. The series field has 30 turns/pole, and
the motor parameters are:
Armature
0.1414 ohms
IP + CW
0.0412 ohms
Series
0.0189 ohms
Resistance,
The motor has a maximum safe speed of 1700 r/min. Is it safe to operate the
motor with a 10-hp shaft load? Use the magnetization curve in Figure
11.16, and show all work. Neglect changes in windage and friction
It is not safe to operate the motor with a 10-hp shaft load.
Explanation :
Solution-
First, determine the rated speed and current of the motor:
Rated speed = 850 r/min
Rated current = 500 V / (0.1414 ohms + 0.0412 ohms + 0.0189 ohms) = 30.22 A
Next, determine the speed and current for a 10-hp shaft load:
Speed = 1700 r/min
Current = 10 hp / (75 hp * 0.902) = 0.1343 A
Finally, determine whether it is safe to operate the motor with the 10-hp shaft load using the magnetization curve. we can see that the current at 1700 r/min is 0.1264 A, which is less than the current for the 10-hp shaft load (0.1343 A).
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Each bolt diameter in the standard system can have one of two thread pitches, _________ or unf.
Each bolt diameter in the standard system can have one of two thread pitches, coarse or unf.
What is thread pitches?The term used to describe the distinction between two threads is thread pitch. TPI is swapped out for thread pitch when talking about metric fasteners. Millimeters are used to measure the distance as well.
Use a caliper to measure the distance between the peaks of each thread in order to determine the thread pitch.
M2 x 0.4 x 5M
In terms of millimeters, the M2 designates the bolt's diameter.
There are when the number 4 is used to represent the thread pitch in millimeters.
5M denotes the length of the bolt in millimeters and 4M denotes the distance between each thread peak.
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A heat pump is used to heat a house and maintain it at 24°C. On a winter day when the outdoor air temperature is –5°C, the house is estimated to lose heat at a rate of 82000 kJ/h. Determine the minimum power required to operate this heat pump. The minimum power required to operate this heat pump is kW.
The minimum power required to operate this heat pump will be 2.17 kW.
What is the efficiency of the heat pump?The efficiency of the heat pump is given as,
η = T₂ / (T₂ - T₁) = Q / W
An intensity siphon is utilized to warm a house and keep up with it at 24°C. On a colder time of year day when the outside air temperature is - 5°C, the house is assessed to lose heat at a pace of 82000 kJ/h.
Then the minimum power is given as,
82,000 / W = (24 + 273) / [(24 + 273) - (- 5 + 273)]
W = 7811.4478 kJ/h
W = 2.17 kW
The minimum power required to operate this heat pump will be 2.17 kW.
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Even in the Max A/C mode, some systems provide for up to 50 percent fresh air.
Recirculated air is the primary source of air in the MAX cooling position. A customer reports that no matter what temperature range is selected on the control panel, the passenger compartment temperature is either consistently too hot, cold, or stays the same.
What Max A/C systems provide for to 50 percent fresh air?Pressurization is necessary for a refrigeration system. If the compressor is removed, the refrigerant in the air conditioner remains stationary.
Therefore, The high-pressure gas refrigerant reaches the condenser after exiting the compressor, where it changes from a gas to a liquid.
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In a circuit with 10 ohms resistance and 15 ohms inductive reactance, the impedance is _ ohms
a. 25
b. 150
c. 18. 0277
d. 5
C. 18.0277
In a circuit with 10 ohms resistance and 15 ohms inductive reactance, the impedance, z = [tex]\sqrt{R^{2}+X^{2}}[/tex]) ohms.
What is Impedance?
Impedance is a complex number that contains both real and imaginary parts. It is the product of resistance as well as reactance (both inductive and capacitive).
(Resistance is the real part of impedance, while reactance is the imaginary part.) The magnitude and phase of impedance are both present.
Impedance is a combination of resistance and reactance. It is defined as anything that obstructs the flow of electrons within an electrical circuit.
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How would you describe good communication? Why and when do we need it?
Suppose you want to compare the overall score on a cumulative history exam for two fifth-grade classrooms. You decide to use the 2 Proportion tests. Which two results are always listed in the session window for the proportion tests?
Select an answer:
chi-square and confidence interval
P value and chi-square
T value and mean
P value and the confidence interval
The two results that are always listed in the session window for the proportion tests is D. P value and the confidence interval.
Which two results are always listed in the session window for the proportion?The p value is a number calculated from a statistical test that describes the likelihood of finding a specific set of observations if the null hypothesis is true. P values are used in hypothesis testing to help determine whether the null hypothesis should be rejected.
Confidence intervals are used by statisticians to quantify uncertainty in a sample variable. A researcher, for example, may randomly select different samples from the same population and compute a confidence interval for each sample to determine how well it may represent the true value of the population variable. The resulting datasets are all unique, with some intervals containing the true population parameter and others not.
In this case, this will be useful to compare the scores.
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What does General Zaroff say that shows he thinks Rainsford is similar to him?
“I’ll tell you”
“You will be amused”
“I have done a rare thing”
“in all modesty”
Answer:
Explanation:
The phrase:
“You will be amused”
He is assuming that Rainsford will enjoy what he is about to show him because he himself enjoys it.
consider point a adjacent to the wall at mid height draw the mohrs-coulomb failure envelope in g
Shear strength Mohr-Coulomb chart According to the Mohr-Coulomb theory, as given in Eq., the shear strength () is a function of the normal stress (), internal friction angle (), and cohesion (c) (1). τ = c + (σ . Tan φ) .
The Mohr-Coulomb parameters are what?The Mohr-Coulomb parameters are calculated by choosing a linear envelope that "best-fits" a non-linear envelope over a specified range of stresses. Using the Failure range option in the materials dialog, the stress range is specified.
The Mohr hypothesis of failure is what?This theory is based on the idea that failure will happen when the greatest shear stress is greater than the maximum shear stress required for yielding in a uni-axial test. Consequences: Max,abs = Y/2 is the value that defines the failure border.
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A catalytic converter has to be at least how hot before it begins to work?
Answer:
Normal operating temperatures of a converter are 500-800°F, and up to 1200°F when the vehicle is under heavy load.To melt the catalytic converter's substrate, the temperature inside the converter would have to exceed 2000°F.
Explanation:
in a tandem drive highway tractor with a 4s/4m abs, which axles are usually monitored and modulated?
In a tandem drive highway tractor with a 4S/4M ABS,which axles are usually monitored and modulated by option B) steer axle and rear drive axle.
What is a tandem tractor?A single axle tractor is more likely to only tow a small or medium-sized load compared to its larger counterparts, whereas most double axle or tandem axle tractors are employed to haul exceptionally heavy loads.
It is sometimes known as a tandem, double-bottom, or double-trailer truck. a very long vehicle made comprised of a tractor towing two trailers connected up in a row. a semitrailer made to attach to another component of such a rig.
Therefore, Anti-lock Brake System includes the ABS sensor, sometimes referred to as a wheel speed sensor. It tracks the wheel speed on your automobile, SUV, or truck and is found in the wheel hub. The passenger-side tail shaft housing contains the sensor.
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See full question below
In a tandem drive highway tractor with a 4S/4M ABS,which axles are usually monitored and modulated?
A) both tandem drive axles
B) steer axle and rear drive axle
C) steer axle and front drive axle
floyds cycle detection algorithm advantages and disadvantages
The advantage of the Floyd algorithm is its versatility. Numerous problems can be resolved with the algorithm. A disadvantage is the algorithm is quite complex and can be difficult to understand.
What is Floyd's algorithm?Only two pointers—each moving through the succession at a different speed—are used in Floyd's method, which is a pointer-based algorithm. In reference to Aesop's story The Tortoises and the Hare, it is also known as the "turtle and the hare algorithm."
Why Floyd algorithm is used?The Floyd algorithm is applied to find that shortest route via the weighted graph between each vertex. Both direct and undirected graphs can be used with this approach, but the graph having negative cycles cannot be used. Its space complexity is O, and its time complexity is O(N-L), where N represents the number of nodes in the linked list and L is the length of the loop (1).
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why do bioprocess engineers tend to maintain a fixed height to diameter ratio when scaling up reactors? how does this affect transport?
In bioreactors, effective mixing is necessary to prevent concentration gradients, which can injure mammalian cells.
We used a colorimetric approach and two pH indicators to monitor mixing times in containers with nominal contents ranging from 2 to 1500L in order to examine mixing and its scalability in cylindrical bioreactors that are orbitally shaken. The liquid height, shaking diameter, agitation rate, and container inner diameter were the four operating parameters that were tested. As the agitation rate increased, the mixing time shrank until a minimum value was obtained. To achieve the shortest mixing time when the shaking diameter was decreased, a higher agitation rate was required.
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technician A says that a power balance test is a good way to narrow a misfire down to a particular cylinder(s). technician B says that a cylinder power balance test measures the volumetric efficiency of the cylinder being tested
Answer: Technician B.
Explanation: Please vote brainliest.
A "calorie" is a unit of energy, defined as the amount of energy needed to raise the temperature of one gram of water by one degree Celsius. The nutritional labels on food products typically tell you how many calories of digestible energy are in one serving of food, where "digestible" means that the energy stored in the chemical bonds of the molecules comprising the food can be extracted by your body. (Water for example has energy, but that energy is not chemically accessible via digestion.) To simplify understanding for typical consumers, the "calories" reported on nutritional labels actually represent kilocalories: a 170 calorie can of beer actually contains 170,000 calories of digestible energy.
i) If a student foolishly decides to binge drink 21 beers on their 21t birthday, how many gallons of water could they have heated from room temperature (24 °C) to boiling (100 C) using an equivalent amount of digestible energy in the beer? Recall that one gallon of water is roughly 8 pounds.
ii) What is this energy equivalent to in BTU? A "BTU" or British Thermal Unit is also a unit of energy, defined as the amount of energy needed to raise the temperature of one pound of water by one degree Fahrenheit
iii) If you had purchased an equivalent amount of electrical energy in kW-hr from the utility company, how much would you have to pay? Is this cheaper than buying beer?
A "calorie" is a unit of energy that is defined as the usually inform you of the number of calories of digestible energy present in one serving of food. 21 beers times 17 calories per beer equals 357 calories.
What is "calorie"?Calories are units of energy that a food or drink provides. You can usually find calorie counts listed on food items, and wearables like the best fitness trackers allow you monitor how many calories you're burning by doing different activities. Certain foods, such as fatty, fried, or processed foods, tend to have more calories. Other foods, such as fresh fruit and vegetables, tend to have fewer calories. However, some healthy fruits and vegetables can be high in calories, while low-calorie foods, such as diet soda, don’t provide any nutritional value. We need calories to give us enough energy to move around, stay warm, grow, work, think, and play. Even our blood circulation and digestion need the energy gained from calories in order to function well.To learn more about blood circulation refer to:
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AP board question.... An urban planner is designing a new urban housing development in a currently rural area near an existing city. The urban development will have five 10-story apartment buildings, two basketball courts, a playground with permeable foam pavers, a 10-acre green space with a small man-made pond, one 5-story parking deck, and direct access to the mass transit train line. Which of the following aspects in the design for this new urban development would most likely have the greatest negative environmental impact?
The five residential complexes that make up the design of this new urban development will probably have the worst effects on the environment.
What are the two primary factors causing urban growth?Natural population growth and rural-to-urban migration are the two main causes of urbanization. Small villages, towns, and cities of all sizes are affected by urbanization, which eventually results in the emergence of megacities with populations more than 10 million.
What other styles of urban planning exist?In the sections that follow, we'll go through each of the seven categories of urban planning: strategic urban planning, land-use planning, infrastructure planning, urban revitalization, master planning, economic development, and environmental planning.
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technician a says that as the rotational speed of an abs monitored wheel increases, the voltage generated by the wheel speed sensor also increases. technician b says that the frequency produced by a truck abs wheel speed sensor when it is at a standstill should be close to 400 hz. who is correct?
Both the Technician A and Technician B are correct.
How is ABS monitored?As the rotational speed of an ABS-monitored wheel increases, the voltage generated by the wheel speed sensor also increases. This is because the wheel speed sensor is a type of generator that produces a voltage proportional to the speed of the wheel.
As the wheel turns faster, the sensor generates a higher voltage, which is then used by the ABS system to monitor the speed of the wheel and control the brakes as needed.
At a standstill, the wheel is not turning, so the sensor produces a very low frequency signal, typically around 400 Hz. As the wheel begins to turn, the frequency of the signal increases proportionally, providing the ABS system with a measure of the wheel's speed.
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Near the downstream end of a river spillway, a hydraulic jump often forms, as illustrated in Fig. P5.130 and Video V10.11. The velocity of the channel flow is reduced abruptly across the jump. Using the conservation of mass and linear momentum principles, derive the following expression for h2, The loss of available energy across the jump can also be determined if energy conservation is considered. Derive the loss expression jump loss g1h2 h12 3 4h1h2
Mass Conservation:
A1V1 = A2V2
Linear Momentum Conservation:
A1V1^2 + g1H1 = A2V2^2 + g2H2
Combining the above equations gives:
A1V1^2 + g1H1 = A2(A1V1/A2)^2 + g2H2
H2 = H1 + (V1^2/2g2) - (A1V1^2/2g2A2)
Available Energy Conservation:
g1H1 + (1/2)A1V1^2 = g2H2 + (1/2)A2V2^2
Combining the above equations gives:
g1H1 + (1/2)A1V1^2 = g2(H1 + (V1^2/2g2) - (A1V1^2/2g2A2)) + (1/2)A2(A1V1/A2)^2
Jump loss = (g1H1 - g2H2) + (1/2)V1^2(A2/A1 - 1)
How does momentum work?
Momentum, that is created by multiplying a particle's mass by the speed. The momentum has both a magnitude and the direction, it is the vector quantity. The temporal rate of change in momentum equals directly proportional to the force applied on the particle, according to Isaac Newton's second law. Refer to Newton's laws.
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The corner store sells candy in ₵20, ₵30 and ₵50 packages. List all the ways in which the Candyman
can spend exactly $3.00 on candy.
Answer: I will list them down below!
Explanation:
He can buy 6, 50 cent candies.
He can buy 30, 20 cent candies.
He can buy 6, 30 cent candies and 6, 20 cent candies.
He can buy 15, 20 cent candies and 3, 50 cent candies.
He can by 3, 20 and 30 cent candies and 3, 50 cent candies.
That's it.
Hope this helps!
what is meant by the trend component of a time series? how is a linear trend different from a nonlinear trend?
The element of a time series known as a trend represents low-frequency variations in a time series after high and medium-frequency fluctuations have been removed through filtering. Plotting a linear relationship on a graph results in a straight line, but plotting a nonlinear relationship results in a curve.
What is a linear relationship?
No matter if a straight-line graph crosses the origin, the formal term for it is linear, and the relationship between the two variables is referred to as a linear relationship. A curved graph's relationship is referred to as non-linear in a similar way.
If you change one variable n times, it will affect the other variable n times in the same way. This is known as a linear relationship. To put it another way, both variables will double if you double one.
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