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3 years ago

The diagram shows a person holding a bow and arrow.

2 answers:

4 0

Releasing the string would most likely increase the kinetic energy, as kinetic energy is energy in motion. However, if you were to increase the potential energy, then the string would have to be pulled back more, as potential energy is stored energy within an object.

choli [55]3 years ago

4 0

Answer: Releasing the string would increase the kinetic energy

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A chemist heats a fixed amount of gas in a sealed glass container. Which law is the chemist most likely investigating?

PilotLPTM [1.2K]

The law which this chemist is most likely investigating heating a fixed amount of gas in a sealed glass container is: Gay Lussac’s law.

Gay Lussac's law states that when the volume of an ideal amount of gas is held (kept) constant, the pressure of the gas is directly proportional to the absolute (Kelvin) temperature of the gas.

Mathematically, Gay Lussac's law is calculated by using the formula;

$PT = K\\\\\frac{P_1}{T_1} = \frac{P_2}{T_2}$

<u>Where:</u>

$P_1$ is the original pressure.

$P_2$ is the final pressure.

$T_1$ is the original temperature.

$T_2$ is the final temperature.

In conclusion, the chemist is most likely investigating how changes in temperature affect the pressure of the gas by heating a fixed amount in a sealed glass container in accordance with Gay Lussac's law.

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3 years ago

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1. T or F? An electric field has strength, but no direction.

Anastasy [175]

1:False, it has both

2:Electric potential is the amount of work done to bring the unit positive charge from infinity to that point, while electric potential energy is the energy that is needed to move a charge against the electric field.

3:Towards

4: Answer should be True

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2 years ago

300 moles of sodium nitrite are needed for a reaction. the solution is 0.450 m. how many ml are needed?

miv72 [106K]

Answer:

$\boxed{\text{667 000 mL}}$

Explanation:

$\text{Molar concentration} = \dfrac{\text{moles}}{\text{litres}}\\\\c = \dfrac{n}{v}$

Data:

c = 0.450 mol·L⁻¹

n = 300 mol

Calculation:

$\begin{array}{rcl}0.450 & = & \dfrac{300}{V}\\\\0.450V& = & 300\\\\V & = & \dfrac{300}{0.450}\\\\V & = & \text{667 L} =\textbf{667 000 mL}\end{array}\\\text{The volume of solution needed is }\boxed{\textbf{667 000 mL}}$

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3 years ago

Will mark brainly<br> ASAP

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Shivering, because it’s just a reflex to maintain homeostasis and nothing is necessarily ‘coming out’

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3 years ago

If someone said a particular metal had "hardness," what would she mean? A.it can't be bent easily B.it can't be stretched out ea

DedPeter [7]

It can’t be bent easily

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3 years ago

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