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3 years ago

Using the rules for scientific figures, what do you get when you multiply 67.6 by 1.2

2 answers:

7 0

Did you mean significant figures? If so, 67.6(1.2)=81
When multiplying, you always leave the the answer in the least amount of significant figures.

STALIN [3.7K]3 years ago

5 0

Answer: C

Explanation:

67.6×1.2=81.12

The correct choice would be the answer with the same number of significant figures as the least precise number hence the answer.

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What data can be used to make a model of food?

drek231 [11]

Answer: the density of the object / the mass it takes to stand up.

Explanation:

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3 years ago

A hamburger containing 335.4 kcal of energy was combusted in a bomb calorimeter with an unknown heat capacity. The temperature o

Zielflug [23.3K]

Answer:

$Cv_{calorimeter}=18.4kcal/K$

Explanation:

Hello!

In this case, since the combustion of the hamburger released 335.4 kcal of energy and that energy is received by the calorimeter, we can write:

$Q_{hamburguer}=-Q_{calorimeter}$

And the heat of the calorimeter is written in terms of the temperature change and the calorimeter constant:

$Q_{hamburguer}=-Cv_{calorimeter}\Delta T$

Thus, given the released heat by the hamburger due to its combustion and the temperature change, Cv for the calorimeter turns out:

$Cv_{calorimeter}=\frac{-Q_{hamburguer}}{\Delta T} =\frac{-(-335.4kcal)}{18.2K}\\\\Cv_{calorimeter}=18.4kcal/K$

Best regards!

4 0

3 years ago

Consider this reaction mechanism:

tester [92]

Answer:

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-cause i took the test on engenuity

8 0

3 years ago

How does the density of a Hershey bar compare to the density of the a half bar?How does the density of a Hershey bar compare to

Lostsunrise [7]

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3 years ago

An object has a weight of 5.10 Newtons (N) at sea level, where the acceleration due to gravity is 9.81 m/s2.

RUDIKE [14]

Well, you could get the mass as $m=\frac{G_0}{g_0}$ ad then $g_1=\frac{G_1}{m}$ , where $G_0$ is the sea level weight, $g_0$ the sea level accel., $g_1$ the accel. above while $G_1$ the weight above.

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3 years ago

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