If an electron moves in the direction of the electric field, the electric potential decreases.
Electric field
An electric field is a field surrounding all particles that have charge when place in the field. An electric field exerts a force on the particles which can either attract or repel the charged particles. It is given in force per unit charge.
If an electron moves in the direction of the electric field, the electric potential decreases.
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The school store has 1500 pencils in stock and sells an average of 20 pencils per day. The manager reorders when the number of pencils in stock is 460.
The number of days it will take the manager to reorder pencils is 52 days
How many days will it take to reorder the pencilsGiven:
Total pencils in stock = 1500Average pencils sold per day = 20Number of pencils remaining before reorder = 460Number of pencils sold before reorder = 1500 - 460
= 1,040 pencils
Number of days used to sell the pencils = Number of pencils sold before reorder ÷ Average pencils sold per day
= 1,040 ÷ 20
= 52 days
The complete question:
in how many days will the manager have to reorder
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How is a phylogenetic tree similar to a dichotomous key.
A phylogenetic tree represents the history of lineages of organisms, a dichotomous key is a tool to discover which group an organism belongs to, using taxonomic keys, both structures were founded by Carl Linneaus.
What is a phylogenetic tree?It is a schematic diagram used to illustrate or represent hypotheses about the evolutionary relationships between a group of organisms.
What is a dichotomous key?It consists of a model or scheme that allows the determination of different species.
Therefore, we can conclude that a phylogenetic tree is a structure used to represent ancestor-descendant relationships, a dichotomous key identifies the species to which an organism belongs, both structures were founded by Carl Linneaus.
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Answer:
Both focus on illustrating taxonomic relationships between organisms.
A stunt person jumps from the roof of a tall building, but no injury occurs because the person lands on a large, air-filled bag. Which one of the following best describes why no injury occurs?.
What is the suggested solution to the problem according to the author.
Answer:
here
Explanation:
1 Define the problem. Diagnose the situation so that your focus is on the problem, not just its symptoms. ... 2 Generate alternative solutions. Postpone the selection of one solution until several problem-solving alternatives have been proposed. 3 Evaluate and select an alternative. ... 4 Implement and follow up on the solution. ...
In a multiple choice exam, there are 5 questions and 4 choices for each question (a, b, c, d). Nancy has not studied for the exam at all and decides to randomly guess the answers. What is the probability that:.
Using the binomial distribution, it is found that there is a 0.6836 = 68.36% probability that she guesses at least one right.
For each question, there are only two possible outcomes, either she gets it right or she does not get it right. The probability of getting a question right is independent of any other question, hence the binomial distribution is used to solve this question.
What is the binomial distribution formula?The formula is:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
The parameters are:
x is the number of successes.n is the number of trials.p is the probability of a success on a single trial.In this problem:
There are 5 questions, hence n = 5.For each question, she guesses one out of 4 options, hence p = 1/4 = 0.25.The probability that she guesses at least one right is:
[tex]P(X \geq 1) = 1 - P(X = 0)[/tex]
In which:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{4,0}.(0.25)^{0}.(0.75)^{4} = 0.3164[/tex]
Hence:
[tex]P(X \geq 1) = 1 - P(X = 0) = 1 - 0.3164 = 0.6836[/tex]
0.6836 = 68.36% probability that she guesses at least one right.
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Altering the three-dimensional structure of an enzyme is referred to as.
Altering or changing the three-dimensional (3D) structure of an enzyme is referred to as: denaturation.
What is an enzyme?An enzyme can be defined as a biological catalyst that typically speeds up (increases) the rate of a chemical reaction, by lowering (decreasing) the activation energy of its constituent chemical elements (reactants).
What is denaturation?In Science, denaturation can be defined as a biological process that involves altering or changing the three-dimensional (3D) structure of an enzyme. Also, it prevents the substrate in a chemical reaction from binding the enzyme's active site.
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Over a 24-hour period, the tide in a harbor can be modeled by one period of a sinusoidal function. The tide measures 4. 35 ft at midnight, rises to a high of 8. 3 ft, falls to a low of 0. 4 ft, and then rises to 4. 35 ft by the next midnight. What is the equation for the sine function f(x), where x represents time in hours since the beginning of the 24-hour period, that models the situation? enter your answer in the box.
Answer:
f(x) = 3.95sin (πx/12) + 4.35
Explanation:
Answer:
f(x) = 3.95sin (πx/12) + 4.35
Explanation:
I took the test k-12
In order to reduce production costs, autoworks an automobile manufacturer, decided to buy out a glass plant and begin manufacturing the glass for the windows of cars on its own. The corporate strategy adopted by the company is known as.
Answer:
the glass for the windows of cars on its own.
Explanation:
lol
The glass for the windows of cars on its own.
What is Corporate Stratergy?Corporate strategy is the strategy level that concerns itself with the entirety of the organization, where decisions are made with regard to the overall growth and direction of a company.
Corporate strategies are arguably the most essential and broad-ranging strategy level within an organizational strategy.
Corporate level strategy refers to the highest level of corporate strategic planning. In this article, we dive deeper into it, but it’s useful to understand the other strategic levels as well and how they are related.
Therefore, The glass for the windows of cars on its own.
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Which of the following are coefficients you could use in a balanced equation? (select all that apply).
The complete question has options given are; 1, 9, 1/2, .5, 2, 3/4 and 6.
The coefficients which could be used in a balanced equation are; 1, 9, 2, and 6.
Coefficients in balanced equationsThe coefficients which can be used in balanced equations are whole numbers.
Although, other type of numbers such as fractions and decimals can be used, they may need to be simplified into whole number forms by multiplying the whole equation by a required factor for ease of computation
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The meiji government’s ""emulation of foreign ways"" was most directly a response to which of the following nineteenth-century developments?.
The meiji government’s ""emulation of foreign ways"" was most directly a response to western states forcing japan to open itself to trade.
What is Meiji government?Meiji the Great was emperor of Japan, he was the 122nd traditional ruler of Japan.
His reign brought about the end of the shogunate and he implement various tax and reformation.
Meiji responded to western states that were forcing japan to open up to different trade by eliminating them.
Therefore, the meiji government’s ""emulation of foreign ways"" was most directly a response to western states forcing Japan to open itself to trade.
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How does the poem fit the structural definition of a lyric poem brainly.
Poem fit the structural definition of a lyric poem when it short and emotional.
What is a Poem?poem are writing that are rhythmic, the writings or words are selected based on the sound it's produced and beauty and they are arranged in short line form.
A lyric poem is usually full of emotions and song like. The poem is narrated or read in first person and short.
Therefore, for poem to fit the structural definition of a lyric poem it must be short and emotional.
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Suppose a sugar cone is 10 centimeters deep and has a diameter of 4 centimeters. A spherical scoop of ice cream with a diameter of 4 centimeters rests on the top of the cone. (i) if all the ice cream melts into the cone, will the cone overflow? explain. (ii) if the cone does not overflow, what percent of the cone will be filled?.
Answer:
i)no as 42>33.5
ii)around 82 %
Explanation:
volume of the scoop - 4/3 pi r cube = ~33.5
volume of cone - 1/3 pi r square = ~42
Percent of cone will be filled is 81%
Volume base problem:Given that;
Length of sugar cone = 10cm
Diameter of sugar cone = 4 cm
Diameter of spherical scoop = 4 cm
Computation:
Diameter of sugar cone = 4 cm
Radius of sugar cone = 4/2 = 2 cm
Diameter of spherical scoop = 4 cm
Radius of spherical scoop = 4/2 = 2 cm
Volume of cone = [tex]\frac{1}{3}[\pi r^2h][/tex]
Volume of cone = [tex]\frac{1}{3}[(3.14) (2)^2(10)][/tex]
Volume of cone = 41.86 cm³
Volume of spherical scoop = [tex]\frac{4}{3}[\pi r^3][/tex]
Volume of spherical scoop = [tex]\frac{4}{3}[(3.14) (2)^3][/tex]
Volume of spherical scoop = 33.49 cm³
Cone is enough big.
Percent of cone will be filled = [tex]\frac{33.49}{41.86} \times 100[/tex]
Percent of cone will be filled = 81% (Approx.)
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A positively-charged piece of plastic is placed next to an electrically neutral piece of paper. What is the force between them?.
The force between a positively charged plastic and a neutral paper is :
Attractive because the plastic polarizes the paper Force of attractionThe force of attraction between a positively charged material and a neutral material becomes stronger as the positively charged material polarizes the neutral material which enables it to exert an attractive force on the neutral material. while
The electrical force of attraction between charged materials reduces with the increase in distance between them.
Hence we can conclude that the force between a positively charged plastic and a neutral paper is attractive because the plastic polarizes the paper.
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If a gas has a volume of 750 l at 298 k, what would the volume of the gas be at 328 k?.
Answer:
826 l
Explanation:
V1 = 750 l, T1 = 298 K
V2 = ?, T2 = 328 K
If the pressure is constant,
V1/T1 = V2/T2
so
V2 = V1 * (T2/T1) = 750 *(328/298) = 826 l
To find the number of molecules in the given sample of her compound, which of these values must also be used in her calculation?.
The value which must be used to find the number of molecules in the given sample of her compound is; Avogadro's number.
Avogadro's number and the Number moleculesThe Avogadro's constant, otherwise known as the Avogadro's number is the proportionality constant that relates the number of constituent particles in a sample with the amount of substance in the sample in discuss.
Its SI unit is the reciprocal of mole, and it is estimated exactly as Na = 6.02214076×10²³ mol⁻¹.
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The local driver’s license center processes applications for driver’s license renewals through the following three steps. First, the customer registers with the receptionist, who updates the customer’s information in the database. This first step takes 3 minutes per customer. Then, the customer visits one of two cashiers to pay the associated fees for the license renewal. This takes 7 minutes per customer because several forms must be printed from the computer and signed by the customer. Finally, the customer visits one of three license processing stations where the customer’s picture is taken, and the license is printed. This final step takes 12 minutes per customer.
The license station has the lowest with 12 customers per hour assuming an unlimited demand.
Given the following data:
First step = 3 minutes per customer. Second step = 7 minutes per customer. Final step = 12 minutes per customer.To determine the flow rate of the process in customers per hour assuming unlimited demand:
What is a flow rate?A flow rate is an average rate and it can be defined as the number of flow units that goes through a business process per unit time such as served customers per hour.
Some examples of flow units in a business firm include:
MoneyGoodsServicesCustomersGenerally, the flow rate of a business process is highly dependent on the capacity of the bottleneck and the license station has the lowest with 12 customers per hour assuming an unlimited demand.
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In (figure 1), what is the magnitude of the current in the wire above the junction?.
The magnitude of the current in the wire above the junction is;
5 A
Calculations using Kirchoff's Current Rule
From the image of the circuit attached, we see that;
For wire 1, current is flowing towards the junction and that;
Resistance; R₁ = 2Ω
Voltage; V₁ = 6V
For wire 2, current is flowing towards the junction and that;
Resistance; R₂ = 5 Ω
Voltage; V₂ = 10 V
Formula for current is;
I = V/R
Thus;
I₁ = V₁/R₁
I₁ = 6/2
I₁ = 3 A
I₂ = V₂/R₂
I₂ = 10/5
I₂ = 2 A
Now, kirchoff's current law or junction law states that the total current flowing into the junction is equal to the total current flowing out of the junction.
We see that the third wire which is above the junction has it's current flowing out of the junction. Thus;
I₁ + I₂ = I₃
3 + 2 = I₃
I₃ = 5 A
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When is it okay to touch the inside of a computer that is turned on?.
John is out sick today. Can you take on some of his work? below are his activities that we need to complete today.
The information presented is very effective for John's friend to complete the tasks.
This information is effective, as it allows John's friend to identify activities that should be carried out first, as they are priorities and should receive greater focus and dedication.
What are private activities?Most important activities.Activities that require more dedication.Activities that must be done first.Therefore, as John's friend knows what the priority activity is, he can organize himself better, dedicating more time to activities that require it.
The question you asked is incomplete, but you can find the full version in the attached photo.
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John is out sick today. Below are his activities that we need to complete today.
An activity is a purposeful pursuit or engagement with a specific objective in mind. What kind of activities you engage in will significantly determine how well you achieve your goal. A typical academic endeavour aims for academic learning and high scores.
Teaching strategies include using curriculum activities to make lessons engaging, simple to understand, and successful. It lists the objectives, learning experiences, teaching materials, assessments, and goals of a particular educational programme.
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Immediately after digestion in the small intestine, most dietary fats are absorbed into the.
Immediately after digestion in the small intestine most dietary fats are absorbed into the bile.
What is the bile?This is the part that is secreted by the liver that is able to perform these functions
Carrying wasteBreaking down of fats during digestion.The bile is where the emulsification of the fats happen after they have been absorbed.
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Which statement best explains what would happen if a reactant were added to a system in equilibrium?.
The statement that best explains what would happen if a reactant was added to a system in equilibrium is: The system would shift toward the products to oppose the change.
What is a System in Equilibrium?When a system that is in equilibrium, it means that the rates of the forward and reverse reactions are equal to each other.
If additional reactant is added to the system in equilibrium, the rate of forward reaction increases as the equilibrium shifts to the right towards the side of the products.
Therefore, the statement that best explains what would happen if a reactant was added to a system in equilibrium is: The system would shift toward the products to oppose the change.
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When we react a weak base with a strong acid, the component of the base that contributes to the ph of the solution is the:.
The component of the base that contributes to the pH of the solution when a weak base reacts with a strong acid is referred to as the: conjugate base.
What is a Conjugate Base?A conjugate base can b described as the base which differ from an acid based on the presence or absence of proton.
For example, the conjugate base of [tex]NH_{4+}[/tex] is [tex]NH_{3}[/tex].
Therefore, the component of the base that contributes to the pH of the solution when a weak base reacts with a strong acid is referred to as the: conjugate base.
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Answer:
conjugate acid
Explanation:
It is the conjugate acid of the weak base that generates hydronium and therefore contributes to the pH.
The solubility of glucose at 30°c is 125 g/100 g water. A solution is made by adding 250 g of glucose to 100 ml of water at 30°c. Remember that 1 g water = 1 ml water. How would you classify this type of solution? heterogeneous saturated supersaturated unsaturated.
Answer:
C. Supersaturated
Explanation:
I know this is late but for others in the future who may need help.
Considering the definition of supersaturated solution, this type of solution is supersaturated.
Supersaturated solutionA solution is a supersaturated solution when it contains more solute than the amount supported under equilibrium conditions by the solvent at a given temperature.
In other words, supersaturated solutions are those in which more solute has been added than can be dissolved in the solvent. For this reason, it is observed that a part of the solute goes to the bottom of the container. That is, the observed solution is saturated (it contains the maximum amount of dissolved solute), and the excess settles at the bottom of the container.
This caseA solution is made by adding 250 g of glucose to 100 ml of water at 30°c. Remembering that 1 g water = 1 ml water, then a solution is made by adding 250 g of glucose to 100 g of water at 30°c.
The solubility of glucose at 30°c is 125 g/100 g water.
You can see that there is more solute than the solvent can incorporate (the solution can incorporate 125 g of glucose). Therefore the solution is supersaturated.
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On a particular day, caroline decided to run two laps of a park of which each lap is 1. 2kms. She takes 12 minutes to run her first lap, and she runs her second lap at an average speed of 7 km/h. Determine her average speed over the two laps.
Answer:
6.46 km/h
Explanation:
Total distance d = 2 * 1.2 = 2.4 km
Total time t = 12 min + t' where t' is the time taken for second lap.
t' = 1.2 km/(7 km/h) = 1.2/7 hours
so t = 12/60 hours + 1.2/7 hours = 0.3714 hours
The average speed = d/t - 2.4/0.3714 = 6.46 km/h
Eighty percent of a roof, or 2800 square feet of the roof, has been re-shingled. What is the total area of the roof?.
Answer:
The total area of the roof is 3500 ft^2
Explanation:
2800ft^2 = 80% of roof
Divide by 0.8 to solve for the total area.
2800 / 0.8 = 3500 ft^2
Canis familiaris (dogs) and canis lupus (wolves) are a different brainly.
Canis familiaris (dogs) and canis lupus (wolves) are a different taxonomic subcategory.
What is a subspecies?A subspecies is a taxonomic subcategory that refers to each of the groups in which a species is found.
Characteristics of a subspeciesThese groups, in addition to having the characteristics of the species in which they are found, have special morphological characters that make them different from each other.Dogs and wolves belong to the same zoological species that is the Canis lupus species.This classification into subspecies is mainly due to the domestication process that gave rise to dogs, in addition to important physiological and anatomical differences.Therefore, we can conclude that dogs are a subspecies, called Canis lupus familiaris, Canis lupus is the species, in which both dogs and wolves are included, being the "familiaris" what refers to the domestic dog.
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Answer:
Species
Explanation:
A cart is pulled a distance d on a horizontal surface while it is acted on by five forces, as shown in the diagram. Normal forces of magnitudes n1 and n2 are directed upwards at the rear and front wheels, respectively. Rolling frictional forces of magnitudes f1 and f2 are opposite in direction to the displacement and act on the rear and front wheels, respectively. The weight of the cart, with magnitude w, is directed downward. Finally, a pulling force of magnitude p makes and angle of φ with horizontal. The direction of the displacement is to the right in the diagram.
The work done by the pulling force is [tex]P\cdot d \cdot \cos \theta[/tex].
The work done by rear wheels normal force is 0.
The work done by front wheels normal force is 0.
The work done by rear wheels friction force is [tex]-f_{1}\cdot d[/tex].
The work done by front wheels friction force is [tex]-f_{2}\cdot d[/tex].
The work done by weight is 0.
How to determine the work done by a force
In this question, we see a system with six uniform and stable forces. The equation of work done by a uniform and stable force is:
[tex]W = F\cdot s\cdot \cos \theta[/tex] (1)
Where:
[tex]F[/tex] - Force, in newtons. [tex]s[/tex] - Traveled distance, in meters.[tex]\theta[/tex] - Angle of force respect to displacement direction, in degrees.Now we proceed to calculate the work done by each force:
Pulling force ([tex]P[/tex])[tex]W_{P} = P\cdot d\cdot \cos \theta[/tex] (2)
The work done by the pulling force is [tex]P\cdot d \cdot \cos \theta[/tex]. [tex]\blacksquare[/tex]
Rear wheels normal force ([tex]N_{1}[/tex])
[tex]W_{N_{1}} = N_{1}\cdot d\cdot \cos 90^{\circ}[/tex]
[tex]W_{N_{1}} = 0[/tex] (3)
The work done by rear wheels normal force is 0. [tex]\blacksquare[/tex]
Front wheels normal force ([tex]N_{2}[/tex])
[tex]W_{N_{2}} = N_{2}\cdot d\cdot \cos 90^{\circ}[/tex]
[tex]W_{N_{2}} = 0[/tex] (4)
The work done by front wheels normal force is 0. [tex]\blacksquare[/tex]
Rear wheels friction force ([tex]f_{1}[/tex])
[tex]W_{f_{1}} = f_{1}\cdot d\cdot \cos 180^{\circ}[/tex]
[tex]W_{f_{1}} = - f_{1}\cdot d[/tex] (5)
The work done by rear wheels friction force is [tex]-f_{1}\cdot d[/tex]. [tex]\blacksquare[/tex]
Front wheels friction force ([tex]f_{2}[/tex])
[tex]W_{f_{2}} = f_{2}\cdot d\cdot \cos 180^{\circ}[/tex]
[tex]W_{f_{2}} = -f_{2}\cdot d[/tex] (6)
The work done by front wheels friction force is [tex]-f_{2}\cdot d[/tex]. [tex]\blacksquare[/tex]
Weight ([tex]W[/tex])
[tex]W_{W} = W\cdot d\cdot \cos 270^{\circ}[/tex]
[tex]W_{W} = 0[/tex] (7)
The work done by weight is 0. [tex]\blacksquare[/tex]
Remark
The question is poorly formatted and a figure is missing. Correct form is shown below:
A cart is pulled a distance [tex]d[/tex] on a horizontal surface while it is acted on by forces, as shown in the diagram. What is the work done by each force?
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According to many antebellum southerners, the issue of "states' rights" revolved around their right to.
According to many antebellum southerners, the issue of "states' rights" revolved around their right to own slaves.
What is Antebellum slavery?Antebellum is known to be a time before a war and the term is said to be widely linked with the pre-Civil War period in the United States when the act of slavery was been practiced.
The Antebellum South was said to be characterized by the use of slavery and the culture was said to be promoted.
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Answer:
own slaves.
Explanation:
I did this quiz lol
You leave on a 546-mi trip in order to attend a meeting that will start 10. 8 h after you begin your trip. Along the way you plan to stop for dinner. If the fastest you can safely drive is 65 mi/h, what is the longest time you can spend over dinner and still arrive just in time for the meeting?.
Answer:
Explanation:
To find the time the driver can stop for, we must calculate the time it takes him to complete the trip without any stops:
Time without stops = [tex]\frac{546 miles}{65miles/hour} = 8.32 hours[/tex] (approximated)
Since the driver has 10.8 hours to complete the journey, thus the driver can stop for 10.8hrs - 8.32hrs = 2.48hrs
Answer:
2,48 hours
100% correct...........
In "before giving to a charity," what does the symbol of the eye and its corresponding text box in the chart reveal about charitable giving?.
Answer: sometimes scams use similar to legitimate charities in order to trick people into giving
Explanation:I took the test
Answer: Sometimes scams use names similar to legitimate charities in order to trick people into giving.
Explanation: Not only did i take the quiz but i also got it correct by guessing because the others guy does not have a good answer.