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aivan3 [116]
3 years ago
5

Describe how you could feel weightless on Earth.

Chemistry
1 answer:
Alexeev081 [22]3 years ago
5 0
Gravity is a force that acts between the Earth's mass and the mass of other objects that surround it. ... Astronauts merely feel weightless because there is no external contact force pushing or pulling upon their body. They are in a state of free fall.
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If the volume and moles of a container are held constant, the temperature of a gas is inversely proportional to the pressure.
noname [10]

Answer:

FALSE

Explanation:

Assuming that the gas is ideal

Therefore the gas obeys the ideal gas equation

<h3>Ideal gas equation is </h3><h3>P × V = n × R × T</h3>

where

P is the pressure exerted by the gas

V is the volume occupied by the gas

n is the number of moles of the gas

R is the ideal gas constant

T is the temperature of the gas

Here volume of the gas will be the volume of the container

Given the volume of the container and number of moles of the gas are constant

As R will also be constant, the pressure of the gas will be directly proportional to the temperature of the gas

P ∝ T

∴ Pressure will be directly proportional to the temperature

4 0
3 years ago
Which polymers are composed of amino acids? nucleic acids carbohydrates proteins monomers
Colt1911 [192]

Proteins are composed of amino acid

<h3>What is amino acid?</h3>

Protein is constructed from amino acids. An extended chain of amino acids makes up proteins. There are a huge variety of proteins in your body, each of which performs a vital function.

Amino acid sequences differ for every protein. The protein can adopt various shapes and perform a variety of bodily tasks depending on the sequence.

The alphabet's letters can be compared to amino acids. You can create new words by combining letters in various ways. Similar principles apply to amino acids; by combining them in different ways, proteins of various types can be created.

Learn more about proteins

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6 0
2 years ago
Which structures make it possible for some kinds of prokaryotic cells to move around
crimeas [40]
The correct answer of the given question above would be FLAGELLA. The structure that makes it possible for some kinds of prokaryotic cells to move around is the FLAGELLA. Prokaryotic cell is one of the types of cells. The other type is the Eukaryotic cell. This cell is found in two Kingdoms of life which are Archaea and Bacteria. Hope this answer helps.
4 0
4 years ago
Read 2 more answers
according to newtons third law of motion, when a hammer strikes and exerts a force on a nail,the nail does what
Ulleksa [173]
Newton's third law states that if a force is exerted on an object, the object exerts a force<span> back.

</span>
8 0
3 years ago
A sample of a gas at 25°C has a volume of 150 mL when its pressure is 0.947 atm. What will the temperature of the gas be at a pr
sertanlavr [38]

Answer: The temperature of the gas at a pressure of  0.987 atm and volume of 144mL is 25.16^0C

Explanation:

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 0.947 atm

P_2 = final pressure of gas = 0.987 atm

V_1 = initial volume of gas = 150 ml

V_2 = final volume of gas = 144 ml    

T_1 = initial temperature of gas = 25^0C=(25+273.15)K=298.15K

T_2 = final temperature of gas = ?

Now put all the given values in the above equation, we get:

\frac{0.947\times 150}{298.15}=\frac{0.987\times 144}{T_2}

T_2=298.31K=(298.31-273.15)^0C=25.16^0C

The temperature of the gas at a pressure of  0.987 atm and volume of 144mL is 25.16^0C

4 0
3 years ago
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