QuestionConvert $780 \mathrm{kcal}$ to kilojoules for energy used during a hike.

Studdy Solution

STEP 1

Assumptions1. The energy used for the hike is780 kcal. We need to convert this energy to kilojoules3. The conversion factor from kcal to kJ is1 kcal =4.184 kJ

STEP 2

We can calculate the energy used in kilojoules by multiplying the energy in kcal by the conversion factor.
$Energy_{kJ} = Energy_{kcal} \\times Conversion\, factor$

STEP 3

Now, plug in the given values for the energy in kcal and the conversion factor to calculate the energy in kilojoules.
$Energy_{kJ} =780\, kcal \\times.184\, kJ/kcal$

STEP 4

Calculate the energy used for the hike in kilojoules.
$Energy_{kJ} =780\, kcal \\times4.184\, kJ/kcal =3263.52\, kJ$ The person used3263.52 kJ of energy for the hike.

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