Answer:
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When 3000 g of water is cooled from 80.0C to 10.0C, how much heat energy is lost?
Answer:
[tex]878640\ \text{J}[/tex]
Explanation:
m = Mass of water = 3000 g
c = Specific heat of water = [tex]4184\ \text{J/kg}^{\circ}\text{C}[/tex]
[tex]\Delta T[/tex] = Change in temperature of water = [tex](10-80)^{\circ}\text{C}[/tex]
Heat is given by
[tex]Q=mc\Delta T\\\Rightarrow Q=3\times 4184\times (10-80)\\\Rightarrow Q=-878640\ \text{J}[/tex]
Heat energy lost is [tex]878640\ \text{J}[/tex].
The quantity of heat lost is equal to 877,800 Joules or 8778 Kilojoules.
Given the following data:
Mass of water = 3000 grams.Initial temperature = 10.0°C.Final temperature = 80.0°C.Scientific data:
Specific heat capacity = 4.18 J/g °C.How to calculate the quantity of heat lost.Mathematically, the quantity of heat lost is given by this formula:
[tex]Q = mc \theta[/tex]
Where:
m is the mass.c is the specific heat capacity.[tex]\theta[/tex] is the change in temperature.Substituting the given parameters into the formula, we have:
[tex]Q = 3000 \times 4.18 \times (80-10)\\\\Q = 3000 \times 4.18 \times70[/tex]
Q = 877,800 Joules or 8778 Kilojoules.
Read more on heat capacity here: brainly.com/question/16559442
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Allison is 27, in good health, and is starting a new job. She’s trying to decide whether she should go with her employer’s health insurance plan or purchase her own. Would 3 things would you tell her to consider? Explain.
Think about the possible difference with the health insurance plan that is purchased by herself and her employer.
One is definitely price. Which will be cheaper? usually employers give free health insurance, but it will no longer be available if she decides to quit her job.
Second is the contents of the health insurance plan. Some health plan only include certain aspects and not everything.
Thirdly, does she actually need it? She's in good health.
Hope this helps you.
Bryan and his friends are playing a mental math game. Bryan asks each friend to pick a number, multiply it by
4, and then add 6 to the product. Luke says he ends up with 18. What number did Luke start with?
Answer:
He started with the number 3
Explanation:
3*4+6=18
or 3 times 4+6=18
they are both the same answer and you get 3.
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Which of the following is true of algorithms?
A. Algorithms may have an infinite set of instructions
B. Algorithms must be expressed using a programming language
C. Every algorithm can be constructed using combinations of sequencing, selection, and iteration
D. Every problem can be solved with an algorithm
Answer:
C. Every algorithm can be constructed using combinations of sequencing, selection, and iteration.
Explanation:
It's true.
"Every algorithm can be constructed using combinations of sequencing, selection, and iteration" is true.
AlgorithmsAlgorithms are well-defined instructions arranged in sequences in order to execute codes.
They are typically used to solve a class of specific problems or to perform computations.Based on the definition, we can conclude that the statement "every algorithm can be constructed using combinations of sequencing, selection, and iteration" is true.
Learn more on algorithms here: https://brainly.com/question/24793921
the temperature in a city is-1.5
Answer:I don’t get it what is the question?
Explanation: