Whales eat fish and their bigger
<span>Similarities:
-Physical properties can be observed or measured without changing the composition of matter.
-Physical properties are used to observe and describe matter.
</span><span>Differences;
-Chemical properties are only observed during a chemical reaction and thus changing the substance's chemical composition.
</span>
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J.J. Thomson discovered the electron by noticing that a beam of particles could be influenced by an electric or magnetic force and is denoted as option B.
<h3>What is an Electron?</h3>
This is referred to a subatomic particle which has a negative charge present and is involved in chemical reactions.
J.J. Thomson noticed that cathode rays were negatively charged due to deflection by magnetic and electric forces which signifies the presence of a negative particle.
Read more about J.J. Thomson here brainly.com/question/15361325
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Answer:
<u>It increases by a factor of four</u>
Explanation:
Boyle's Law : At constant temperature , the volume of fixed mass of a gas is inversely proportional to its pressure.
pV = K.......(1)
pV = constant
Charles law : The volume of the gas is directly proportional to temperature at constant pressure.
V = KT
or V/T = K = constant ....(2)
Applying equation (1) and (2)
According to question ,
T2 = 4 (T1)
V2 = V1
Put the value of T2 and V2 , The P2 can be calculated,
V1 and V1 cancel each other
T1 and T1 cancel each other
We get,
or
P2 = 4 P1
So pressure increased by the factor of four
1.= less than 7 2.=it does not change