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3 years ago

According to an accepted chemistry reference, the

Mathematics

1 answer:

Ivahew [28]3 years ago

7 0

Answer:

14.8%

Step-by-step explanation:

Step 1: Given data

True value for the heat of vaporization of water (ΔH°vap(T)): 540 cal/g

Experimental value for the heat of vaporization of water (ΔH°vap(E)): 620 cal/g

Step 2: Calculate the experimental percent error

To determine the experimental percent error we will use the following expression.

%E = |ΔH°vap(T) - ΔH°vap(E)|/ΔH°vap(T) × 100%

%E = |540 cal/g - 620 cal/g|/540 cal/g × 100%

%E = 14.8%

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Which angles are adjacent to each other? Select all that apply. And angle CGD and AGC

Hatshy [7]

Answer:

Angle FGB and BGD, Angle FGA and AGB, Angle EGF and FGB, and Angle CGD and AGC

Step-by-step explanation:

Adjacent angles are angles that border each other.

All of these angles share a border with each other, so the correct answers are all of the options.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

~ ren ⚘

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3 years ago

What is the length of HG?

Leviafan [203]

Answer:

$HG = 5$

Step-by-step explanation:

Given

$HE = 8mm$

$EF = 12mm$

$Area = 68mm^2$

Find the length of HG

First, it should be noted that the displayed figure is a trapezium

The area of a trapezium is calculated by multiplying the sum of parallel sides by half its height;

In this case;

$Area = \frac{HG + EF}{2} * HE$

Substitute the values of Area, HE and EF

$68 = \frac{HG + 12}{2} * 8$

$68 = (HG + 12) * 4$

Divide both sides by 4

$\frac{68}{4} = \frac{(HG + 12) * 4}{4}$

$17 = HG + 12$

Subtract 12 from both sides

$17 - 12 = HG + 12 - 12$

$5 = HG$

$HG = 5$

Hence, the length of HG is 5mm

6 0

3 years ago

How may minutes is 40% of 2 hours

8090 [49]

Well, we know that 1 hour is 60 minutes which means 2 hours is 120.
so to find the answer we turn 40% into a decimal which would be .40

Take .40 and multiply that by 120.
.40 * 120 is 48

40% of 2 hours is 48 minutes.

Hope this helps!

3 0

3 years ago

Read 2 more answers

Please help me with this question :) I will mark you as brainliest

wolverine [178]

$\text{Given that,}\\\\s_1 = 5.95,\\\\s_2 = 5.42\\\\\\F= \dfrac{(s_1)^2}{(s_2)^2} = \dfrac{(5.95)^2}{(5.42)^2} = 1.21$

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3 years ago

Assume running consumes 100 calories per mile. If you run 10-minute miles, what is your average power output, in watts, during a

Aleks04 [339]

We are given with the rate of calories burnt out through running of 100 calories per mile. If 10 miles is ran, we get the total calories burnt is 100 calories per mile * 10 miles equal to 1000 calories. Power (watts) is equal to Joules per second. 1000 calories is equal to 4185.8 Joiules. In an hour run- the power is 69.76 Watts

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3 years ago