2 years ago

Im so alone and i really need friends and maybe more pls dont delete my quiestion

Chemistry

1 answer:

balandron [24]2 years ago

6 0

Answer:

I'll be your friend!

Explanation:

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Mass x height x gravity is the formula to calculate:

Sindrei [870]

Answer:

Potential energy

Explanation:

$p.e = mgh$

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3 years ago

Which of the following is the best definition of an independent variable

Soloha48 [4]

Answer:

that one

Explanation:

<h2>esssszzzzjijfc</h2>

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3 years ago

A piston contains 0.39L of air at 1.0 atm. If the pressure on the piston is increased to 5.6 atm, what is the new volume?

bazaltina [42]

The new volume : 0.07 L

<h3>Further explanation</h3>

Boyle's Law

At a constant temperature, the gas volume is inversely proportional to the pressure applied

$\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}$

P₁=1 atm

V₁=0.39 L

P₂=5.6 atm

$\tt V_2=\dfrac{P_1.V_1}{P_2}\\\\V_2=\dfrac{1\times 0.39}{5.6}\\\\v_2=\boxed{\bold{0.07~L}}$

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3 years ago

Which of the elements must be available in water for the metamorphosis of tadpoles?

Grace [21]

The element iodine (I) is important for the fast and hastened metamorphosis of frog-tadpoles. As amphibians, the tadpoles can live in water and land but when they are born they are iodine-deficient. Tadpoles that do not receive ample amount of iodine become tadpoles until the end of their days.

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3 years ago

a bowl of cereal is at a temperature of 62 fahrenheit then the bowl of cereal thermal energy decreases as soon as mass or not ch

rewona [7]

<h3>Answer:</h3>

53 fahrenheit

<h3>Explanation:</h3>

Temperature is a measure of thermal energy. It goes down when thermal energy decreases. Of your choices, the temperature lower than 62 °F is 53 °F.

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3 years ago