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2 years ago

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As of 2017, the tallest roller coaster in the world is the Kingda Ka, located at Six Flags Great Adventure in Jackson, New Jerse

y. It stands 139 meters tall and, at one point, the cars drop 127 meters! Roller coasters are a great way to investigate energy. Look at the diagram of a roller coaster below, and answer the following questions. At what point on the track does the car have the greatest potential energy?

1 answer:

anzhelika [568]2 years ago

3 0

Answer:

energy due to its velocity. We can compare potential and kinetic energy by considering a car on a hill. When the car is at the top of the hill it has the most potential energy.

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As a cooking method, braising is valued for its A. ability to retain flavor. B. quickness and convenience. C. ability to create

SSSSS [86.1K]

Answer: Option (A) is the correct answer.

Explanation:

Braising means first of all fry a dish slightly and then cook it slowly in a closed vessel or dish. The vessel is close so that the liquid present inside it does not evaporates.

Also, Braising is done to mix the flavors of different liquids or spices appropriately.

Thus, we can conclude that as a cooking method, braising is valued for its ability to retain flavor.

5 0

3 years ago

Read 2 more answers

1. Marisa determined the melting point of a substance to be 24.5C. Find the percent error of her measurement if the actual melti

USPshnik [31]

Answer:

$\%\ Error = 21.5\%$

Explanation:

Given

$Measured = 24.5$

$Actual = 31.2$

Required

Determine the percentage error

First, we need to determine the difference in the measurement

$Difference = |Actual - Measured|$

$Difference = |31.2 - 24.5|$

$Difference = |6.7|$

$Difference = 6.7$

The percentage error is calculated as thus:

$\%\ Error = \frac{Difference * 100\%}{Actual}$

$\%\ Error = \frac{6.7 * 100\%}{31.2}$

$\%\ Error = \frac{670\%}{31.2}$

$\%\ Error = 21.4743589744\%$

$\%\ Error = 21.5\%$ <em>approximated</em>

6 0

3 years ago

Given the balanced equation 2KC103+ 2KC1+302

8090 [49]

is it decomp single replacement double replacement

4 0

2 years ago

A balloon containing helium gas expands from 230

Anit [1.1K]

The answer for the following problem is mentioned below.

<u><em>Therefore the final moles of the gas is 14.2 × </em></u> $10^{-4}$ <u><em> moles.</em></u>

Explanation:

Given:

Initial volume ( $V_{1}$ ) = 230 ml

Final volume ( $V_{2}$ ) = 860 ml

Initial moles ( $n_{1}$ ) = 3.8 × $10^{-4}$ moles

To find:

Final moles ( $n_{2}$ )

We know;

According to the ideal gas equation;

P × V = n × R × T

where;

P represents the pressure of the gas

V represents the volume of the gas

n represents the no of the moles of the gas

R represents the universal gas constant

T represents the temperature of the gas

So;

V ∝ n

$\frac{V_{1} }{V_{2} }$ = $\frac{n_{1} }{n_{2} }$

where,

( $V_{1}$ ) represents the initial volume of the gas

( $V_{2}$ ) represents the final volume of the gas

( $n_{1}$ ) represents the initial moles of the gas

( $n_{2}$ ) represents the final moles of the gas

Substituting the above values;

$\frac{230}{860}$ = $\frac{3.8 * 10^-4}{n_{2} }$

$n_{2}$ = 14.2 × $10^{-4}$ moles

<u><em>Therefore the final moles of the gas is 14.2 × </em></u> $10^{-4}$ <u><em> moles.</em></u>

7 0

2 years ago

What would be the coefficient of the NaOH molecule in the balanced equation?

Scilla [17]

2NaOH=Na2O +H2O
The coefficient of NaOH is 2

6 0

2 years ago