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3 years ago

Which represent potential energy?

Chemistry

2 answers:

kvasek [131]3 years ago

5 0

Answer: Option A. A candy bar

Option B. stretched rubber band

Option D. A roller coaster at the top of a hill

Explanation:

Lunna [17]3 years ago

3 0

Answer:

The correct answers are options A. "A candy bar", B. "A stretched rubber band" and D. "A roller coaster at the top of a hill".

Explanation:

Potential energy is defined as the force that any body for its location at a certain position. Three examples of objects having potential energy are a candy bar, a stretched rubber band and a roller coaster at the top of a hill. These three objects are not in motion and its energy is only "potential", rising from the arrangement of its particles, the gravitational force, electric charges, among other factors.

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Read the following sentences. Explain in your own words the meaning of the

Vanyuwa [196]

Answer:

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3 0

3 years ago

Please help..

Hoochie [10]

Answer:

Explanation:

Let's start with the hydrogen. If we have 4 grams of hydrogen, it would be enough for 4 * 9 = 36 grams of water. Well, that can't be possible ...

4 votes

8 0

2 years ago

When the pressure of a gas doubt, does the volume:

SVEN [57.7K]

Answer:

it will halves

Explanation:

if the volume is doubled then the pressure is halves.

8 0

3 years ago

(1) In an experiment for determining the density of water, the following results

Angelina_Jolie [31]

Given parameters:

mass of an empty beaker = 65gm

mass of the beaker and water = 165gm

volume of water = 100cm³

Unknown:

Density of water = ?

Solution:

Density is the mass per unit volume of a substance;

Density = $\frac{mass}{volume}$

To find the mass of the water ;

Mass of water = Mass of beaker and water - mass of an empty beaker

= 165g - 65g

= 100g

So input parameters and solve;

Density = $\frac{100g}{100cm^{3} }$

Density of the water in the beaker = 1g/cm³

4 0

4 years ago

Classify these substances. More than one answer may apply in each case.

enyata [817]

Answer: $H_2$ : Pure substance, Element

$O_2$ : Pure substance , Element

$H_2O$ : Pure substance, Compound

Explanation:

Element is a pure substance which is composed of atoms of similar elements.It can not be decomposed into simpler constituents using chemical reactions.Example: $H-2$ and $O_2$

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: $H_2O$

Heterogeneous Mixture : Mixture that has its different components mixed unevenly within the substance . Example: Air

Homogeneous Mixture : Mixture that has its different components mixed evenly within the substance. Example: sugar dissolved in water

3 0

4 years ago