2 years ago

Which of the following statements is true about the potential energy found in fossil fuels?

Physics

1 answer:

Varvara68 [4.7K]2 years ago

6 0

I'm pretty Sure it's A. Burning fossil fuels releases energy and causes air pollution. But I could be wrong.

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Data that shows consistent, regular, repetitive form displays a pattern.<br><br> True<br><br> False

anyanavicka [17]

I think the answer is True

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2 years ago

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The cardiovascular system consists of

guapka [62]

Consists of A. good luck

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Which of the following includes an example of a chemical property of an element?

Romashka [77]

Answer: D

Explanation:

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2 years ago

Starting from one oasis, a camel walks 25 km in a direction 30° south of west and then walks 30 km toward the north to a second

shepuryov [24]

Answer:

distance between both oasis ( 1 and 2) is 27.83 Km

Explanation:

let d is the distance between oasis1 and oasis 2

from figure

OC = 25cos 30

OE = 25sin30

OE = CD

Therefore BC = 30-25sin30

distance between both oasis ( 1 and 2) is calculated by using phytogoras theorem

in $\Delta BCO$

$OB^2 = BC^2 + OC^2$

PUTTING ALL VALUE IN ABOVE EQUATION

$d^2 = 930-25sin30)^2 + (25cos30)^2$

$d^2 = 775$

d = 27.83 Km

distance between both oasis ( 1 and 2) is 27.83 Km

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2 years ago

What happens to the temperature during an endothermic reaction? ANSWERS; The temperature stays constant. The temperature will de

EleoNora [17]

Answer:

The temperature will decrease (get colder).

Explanation:

Enthalpy changes are heat changes accompanying physical and chemical changes. The enthalpy change is the difference between the sum of the heat contents of products and the sum of heat contents of reactants.

For an endothermic change, heat is absorbed for the reaction.
The surrounding becomes colder at the end of the reaction and so is the reaction itself.
The right choice is that the temperature will decrease.

6 0

2 years ago