Answer:
"equal"
Explanation:
ed 2021
Answer:
Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.
Explanation:
this is what i know but i am sorry if this doesn't help
b) 150kPA
c) 170kPA
d) 250kPA
give reasons
A fixed mass of gas has a volume of 25 , the pressure of the gas is 100 kPa, the volume of the gas is slowly decreased by 15 at a constant temperature, and the change in pressure of the gas is 150 kPa, which is option b.
PV = nRT (P= pressure of the gas, V =volume, n = number of moles of gas, R = gas constant, and T =temperature of the gas in kelvin)
Suppose the gas is an ideal gas and that the temperature is constant,
P1V1 = P2V2
Here P1 = 100 kPa, V1 = 25 , V2 = 10 ,
100 kPa x 25 = P2 x 10
P2 = (100 kPa x 25 ) / 10
P2 = 250 kPa
the change in pressure of the gas is,
ΔP = P2 - P1 = 250 kPa - 100 kPa = 150 kPa
The reason is that when the volume of a fixed mass of gas is decreased, the pressure of the gas increases proportionally, so here assuming that the temperature is constant it is calculated.
Hence, the volume of the gas is slowly decreased by 15 at a constant temperature, and the change in pressure of the gas is 150 kPa, which is option b.
Learn more about the calculation of the change in pressure here.
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Among the following substances, Gasoline is a mixture. The correct option is (b).
Octane, heptane, and other hydrocarbon molecules obtained from petroleum are all mixed together to make petrol. The gasoline utilized in engines is not a single, pure material but rather a mixture of several different compounds.
Baking soda (a), salt (c), and sugar (d) are pure ingredients as opposed to mixes. While sugar (sucrose) is a pure organic component, baking soda (sodium bicarbonate) and salt (sodium chloride) are substances with particular chemical compositions.
Hence, the correct option is (b).
To learn more about Mixtures, here:
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nebular, i did it and its correct
Answer: shrink and heat
Stars similar to our Sun use hydrogen as fuel, creating helium in the process of nuclear fusion.
Now when the hydrogen is used up, the core of the star reaches such a temperature that begins to transform the helium into carbon. That is, the core heats up more due to the continuous fusion reactions and shrinks because it will not have enough pressure to maintain its size.