How much heat must be removed from 456 g of water at 25.

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Answer 1
Answer: 208.9k
Hope this helps!

Related Questions

At midday, what is happening in the leaf of a plant?.

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photosynthesis.
with the energy from the sun, the plant is growing more and more cells.

In casting experiments performed using a certain alloy.

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Answer:
A) Cm = 2.232 s/mm²
B) Time taken to solidify = 74.3 seconds
Explanation:
(A) Since a side is 50mm and all sides of a cube are equal, thus, Volume of the cube is;V = 50 x 50 x 50 = 125,000 mm³
There are 6 faces of the cube, thus Surface Area A = 6 x (50 x 50) = 15,000 mm²
So, Volume/Area = (V/A) = 125,000/15,000 = 8.333 mm
Cm is given by the formula; Cm =[Tts] /(V/A)² where Tts is time taken to solidify and it's 155 seconds in the question. Thus;
Cm = 155/(8.333)²= 2.232 s/mm²
(B) For;Cylindrical casting with D = 30 mm and L = 50 mm.;
Volume of cylinder is;
V = (πD²L) /4
So,V = (π x 30² x 50)/4 = 35,343mm³
Surface area of cylinder is;
A = (2πD²)/4 + (πDL)
Thus, A = ((π x 30²)/2) + (π x 30 x 50) = 6126 mm²
Volume/Area is;
V/A = 35,343/6126 = 5.77 mm
Same alloy and mold type was hsed as in a above, thus, Cm is still 2.232 s/mm²
Since Cm =[Tts] /(V/A)²
Making Tts the subject, we have;
Tts =Cm x (V/A)²
Tts = 2.232 x (5.77)² = 74.3 seconds

if I give you points and you give me no points how many points do you have?

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Then the person you gave points to would have however many you gave them. You would subtract from what you have and add that amount to the other person's, you'd need to add context for this question to actually get help

Explanation: You would have no points and I would have however many points you gave me.

Is this statement true or false?Gas giants all have a cold atmosphere and a hot core.

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False if I remember correctly

Two congruent squares are shown in figures 1 and 2 below.

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The combined area of the shaded triangles in Figure 1 is equal to the combined area of the shaded triangles in Figure 2. The area of the unshaded square in Figure 1 can be represented by . The combined area of the two unshaded squares in Figure 2 can be represented by . The areas of the squares in Figure 1 and Figure 2 show that .
Given :
Figure 1 and figure 2 are given.
The combined area of the shaded triangles in Figure 1 is equal to the combined area of the shaded triangles in Figure 2.
The area of the unshaded square in Figure 1 can be represented by .
The combined area of the two unshaded squares in Figure 2 can be represented by .
The areas of the squares in Figure 1 and Figure 2 show that .

A ti 1 of 1 el auto anoche. (dañar, pretérito).

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A ti se te dañó el auto anoche.

The verb "dañar" implies the production of damage to a certain or determinable thing or person.

Thus, the sentence refers to damage that happened to the car of the person to whom the sentence refers. In addition, this damage occurred in the past tense, that is, on the night before the sentence is pronounced.

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Which of the following variables would be appropriate for a bar graph?.

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Answer: your not showing any variables

Explanation:

put a picture and then we can answer

Which of the following best describes how carbon cycles through earth's systems.

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Answer:

The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics?.

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Answer:

The first law describes how thermal energy is conserved but not the direction it moves.

 

Thermodynamics is demonstrated as the branch of physics that deals with the associations or relationships between heat and other energy forms like mechanical, chemical, and electrical).

As per the question, the first law discusses that heat is a kind or form of energy and thus, processes associated with thermodynamics are subject to energy conservation principle. Therefore, heat energy can neither be destroyed nor created but rather transferred to one place to another and converted to and from other energy forms.

Thus, the first law of thermodynamics is distinct from the second law as 'the former describes how thermal energy can be conserved to and from other forms of energy and not the direction in which it moves' while the second law focuses on entropy.

Explanation:

Sean received both the 5th highest and the 5th lowest mark in the class. How many students are there in the class?.

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If we read the complete exercise, we can understand that the correct answer is 9 students.

This is a math related exercise.

If we take into consideration that Sean is the 5th highest in the class, it means that there are four more people before him.

However, he is also the 5th lowest mark in the class, so it means that there are four more people below him.

If we also count Sean, there are:

9 students in the class.

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Read this excerpt from king arthur's socks: a comedy in one act. Guenevere: (unable to bear it) please, mary, please! what does the stage direction reveal about guenevere? she is not sympathetic to the plight of women who do not conform. She is too busy with her darning to be concerned with the help. She is upset with her servant’s romantic attitude. She is not ready to hear any more modernistic ideas.

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Answer: D. She is not ready to hear any more modernistic ideas.

Which statement describes a personal pressure that is commonly associated with tobacco or nicotine use?.

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Answer: children have parents who smoke

Explanation:

It says personal and all the other options are external factors so having parents that smoke is an internal or personal pressure :) I know cause I’m doing the test right now

In nature during a 24 hour period green plants continuously use.

Answers

Answer:

Carbon Dioxide, or CO2

Explanation:

Plants need to breathe, otherwise they won't survive

Humans' intake oxygen and exhale CO2

However, plants intake CO2 and exhale oxygen

A mother bring her 2-year old child to the clinic because of her concerns about the child's nutritional status. She tells the nurse that for the last week the child has refused to eat anything except animal crackers, and peanut butter and jelly sandwich. Which of the following measures would be most appropriate for the nurse to suggest?.

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Considering the situation described above, the measures that would be most appropriate for the nurse to suggest is that the mother should not offer the child snacks so that the child is hungry and subsequently offer the child the main meal.

What is Main Meal?

The main meal is the conventional food prepared to serve breakfast, lunch, or dinner.

In this situation, given that the child only eats animal crackers and peanut butter and jelly sandwich, which is a form of snacks or junk, the only way to make the child eat good food is to starve him from snacks and only serve his main meal.

Hence, in this case, it is concluded that main meals have nutritional value than snacks and junk.

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The new clients are not responding to our product the way we had hoped. - frankly, i’m hardly with last month’s sales.

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Based on the information given, it can be noted that the word that will accurately fit into the sentence will be "beside myself".

Based on the complete information, it should be noted that one cannot use cloud nine, over the moon, or down in the dumps as they do not fit accurately into the sentence.

Therefore, the correct sentence will be that the new clients are not responding to our product the way we had hoped. Frankly, i’m hardly beside myself with last month’s sales.

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What can you learn from the heading of a court case?.

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Answer:

we learn from court case law is blind. alaways take way of law never do any criminal activities

Answer:

Which court decided the case

Explanation:

A group of campers walked at a speed of 4. 5 mph from their campsite to a rest area. Their return trip to the campsite took 15 minutes longer because their speed was only 4 mph. What is the distance between the campsite and the rest area?.

Answers

The distance between the campsite and the rest area is 9 miles.

The given parameters:

Initial speed of the campers, u = 4.5 mphFinal speed of the campers, v = 4 mph

Let the time of motion from the campsite to rest area = t (hours)

Time for return trip = t hours +  15 mins

                               = (t + 0.25) hours

Let the distance between the campsite and rest area = d

d = 4.5t

d = 4(t + 0.25)

4.5t = 4(t + 0.25)

4.5t = 4t + 1

4.5t - 4t = 1

0.5t = 1

t = 2 hours

The distance between the campsite and the rest area is calculated as follows;

d = 4.5t

d = 4.5 x 2

d = 9 miles

Thus, the distance between the campsite and the rest area is 9 miles.

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Which of the following was a common justification in the united states for the trend depicted in the map?.

Answers

Answer:

XPERIA 1 II the best thing to remember is that you have can be your own in the world of the world of the your best business cards and the your first business plan cards are you to buy be your used car

Explanation:

I Too have can you it me a good price on a new one price and a price little more as well I think have a good you will can find it

What are the equations of the asymptotes of the hyperbola? (y+4)236−(x−6)249=1 enter your answer in point-slope form by filling in the boxes. Enter the slope as a simplified fraction.

Answers

The point slope form of the asymptote of the hyperbola is; y - 4 = ±(6/7)(x - 6)

We are given the equation of the hyperbola as;

[(y + 4)²/36] - [(x - 6)²/49] = 1

We can rewrite this equation as;

[(y + 1)²/6²] - [(x - 6)²/7²] = 1

The general equation form of hyperbola is;

[(y - k)²/a²] - [(x - h)²/b²] = 1

Comparing this general form to our given equation we can see that;

k = -4

h = 6

a = 6

b = 7

Now the equation of the asymptote of a hyperbola follows the general formula;

y = ±[a(x - h)/b] + k

Plugging in the relevant values gives us;

y = ±(6/7)(x - 6) - 4

>> y - 4 = ±(6/7)(x - 6)

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Answer: y+4=±6/7(x−6)

Explanation: I just took the test. This is the right answer.

Wolves have genes that give them a very powerful.

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This is true. Wolves have a sense of smell that is much more powerful than humans.

Which of the following types of receptors are located in the mouth?.

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Answer:

A taste receptor is a type of cellular receptor which facilitates the sensation of taste. When food or other substances enter the mouth, molecules interact with saliva and are bound to taste receptors in the oral cavity and other locations.

Per company policy tools with a purchase price greater than 1000 are capitalized.

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The correct entry to record a tool purchase of $500 is Debt tools expense $500, Credit cash $500

From the complete question, the purchase price is said to be greater than $1000

The above can be recorded using the entries:

Debt tools Credit cash.

For each entry, the amount is half the tool purchase (i.e. $1000).

Hence, the correct entry is Debt tools expense $500, Credit cash $500

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Which of the following about a contour line is false?.

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The statement from the given options that is false about contour lines is;

Option B; Contour lines can cross.

The missing options are;

A. Contour lines form a "V" that points upstream.

B. Contour lines can cross.

C. Contour lines connect points of equal elevation.

D. Concentric contour lines may indicate a hill.

To answer the question, we need to first understand what contour lines are.

Contour lines are lines that are used on topographic maps to show elevations, landform shapes, and slope stiffness. It can also be used to show population density and average income.

An example of a contour lines are Isotherms which means lines of equal temperature.

Now, contour lines do not cross each other but instead will form a v-shape.

Looking at the options, the only one that doesn't apply to contour lines is Option B

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Aiden is aware of the causes of type 2 diabetes. What can he do to help decrease his likelihood of developing the disease? drink more coffee read more books eat more vegetables play more board games.

Answers

Eat more vegetables
They are healthy so it will decrease getting diseases and the other options don’t help decrease the chances

Answer:

eat more veggies

Explanation:

The computer-related professional who writes codes for a wide range, from business software to games.

A)Software Tester

B)IT Manager

C)System Analyst

D)Computer Programmer

Answers

Answer: Im going to guess A

Explanation: I honestly don't know if its not correct please let me know eee

Masalimuot kahulugan.

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what was the question?

Answer:

Masalimuot in English means Complicated

Explanation:

composed of elaborately interconnected parts; complex:

difficult to analyze, understand, explain, etc.:

A food worker takes three hours to reheat a pot of soup for a buffet to 165°f (74°c).

Answers

An action the food worker must take next is to throw the soup out.

Food preservation is an art that typically involves the process of preventing food spoilage by mitigating or reducing the activities (growth) of microbial organisms and other external factors while maintaining the nutritional value, flavor and texture of a food.

Some of the common factors that result in food spoilage include the following:

TemperatureOxidationMoisture contentPathogens (microorganisms) such as yeast, molds, bacteria, etc.

A soup is an example of a time/temperature control for safety (TCS) foods because they are more susceptible to the growth of pathogens (microorganisms) such as yeast, molds, bacteria, etc.

For TCS foods, it is important that they are cooled from 135 Fahrenheit (°F) to 70 Fahrenheit (°F) within two (2) hours, else, it must be thrown out. Since this food worker took three (3) hours to reheat the pot of soup to 165°F (74°C), he or she must throw the soup out because it has exceeded the minimum time required for TCS foods.

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All of the following are characteristics of the blue crab except.

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Answer:

A. Blue Crab Doesn't Hav Teeth

B.

In the photoelectric effect a photon with an energy of 5. 3.

Answers

In the photoelectric effect a photon with an energy of 5.3

What is one drawback shared by both monopolies and oligopolies.

Answers

Answer:

They can harm consumers by fixing price

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