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nevsk [136]
3 years ago
9

A child and her mother are at the park. The child walks around the rectangular park while her mom waits on a bench. The child re

turns to the bench, finishing her walk at the same place she started. The park is 411 meters wide and 475 meters long. What was the displacement of the child?
64 m
886 m
1,772 m
0 m
Chemistry
2 answers:
RSB [31]3 years ago
7 0
C 1,772 is the answer for the question

Luda [366]3 years ago
5 0

The displacement of the child is Om.

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If an endothermic reaction occurs in solution, the temperature of the solution will
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increase

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Those questions were somewhat simple. Questions #5 and #8 I'm not certain of and if you have any kind of textbook or course material, it'd be beneficial to look at it. I hope you were able to figure out the answer to Question #4 was "Wood", otherwise your teacher must be slacking :P. I'll try to figure out the answers to #5 and #8 and let you know what I figured out.

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Read 2 more answers
Classify the processes as endothermic or exothermic.
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endothermic absorbs heat

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b. exothermic

c. endothermic

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3 years ago
Name the four bases found in a DNA molecule
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A typical fast food meal consists of a burger, fries, and a soft-drink and contains 58.0 grams of fat, 39.0 grams of protein, an
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Answer:

371.12 minutes would it take to completely burn off the meal.

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Amount of protein = 39.0 g

The respective fuel values for protein = 17 kJ/g

Amount of carbohydrates in the food = 177 g

The respective fuel values for carbohydrates = 17 kJ/g

Total energy derived from the meal = Q

Q=58.0 g\times 38 kJ/g+39.0 g\times 17 kJ/g+177 g\times 17 kJ/g

Q = 5876 kJ

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Let the time require to burn 5876 kJ of energy be t.

So, \frac{950.0 kJ}{60 min}=\frac{5876 kJ}{t}

\frac{5876 kJ\times 60 min}{950.0 kJ}=371.12 min

371.12 minutes would it take to completely burn off the meal.

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