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2 years ago

Which statement best describes a chemical reaction?

Physics

2 answers:

S_A_V [24]2 years ago

7 0

Answer:

a chemical reaction is a reaction that happens between two objects, like fire and a potion in chemistry

Explanation:

the reason is that the the fire causes the chemical to react, making a chemical reaction

ehidna [41]2 years ago

3 0

A chemical changing

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Answer:

Stretch can be obtained using the Elastic potential energy formula.

The expression to find the stretch (x) is $x=\sqrt{\frac{2\times EPE}{k}}$

Explanation:

Given:

Elastic potential energy (EPE) of the spring mass system and the spring constant (k) are given.

To find: Elongation in the spring (x).

We can find the elongation or stretch of the spring using the formula for Elastic Potential Energy (EPE).

The formula to find EPE is given as:

$EPE=\frac{1}{2}kx^2$

Rewriting the above expression in terms of 'x', we get:

$x=\sqrt{\frac{2\times EPE}{k}}$

Example:

If EPE = 100 J and spring constant, k = 2 N/m.

Elongation or stretch is given as:

$x=\sqrt{\frac{2\times EPE}{k}}\\\\x=\sqrt{\frac{2\times 100}{2}}\\\\x=\sqrt{100}=10\ m$

Therefore, the stretch in the spring is 10 m.

So, stretch in the spring can be calculated using the formula for Elastic Potential Energy.

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3 years ago

What happens to the pressure in all parts of a confined fluid if the pressure in one part is increased?

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Explanation:

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Explanation:

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3 years ago

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Which statement best describes a chemical reaction?​

Which statement best describes a chemical reaction?