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3 years ago

If we say that one quantity is directly proportional to another quantity, does this mean that they are equal to each other?

Physics

2 answers:

Marina CMI [18]3 years ago

6 0

Answer:

Explanation:

It doesn't mean it equal to each other. lets say x is directly proportional to y. Here, if something happens to x then, y will do the same thing. for example, if x increases, then y also increases. similarly, if x decreases, then y also decreases. therefore, x is something or lets say it is a major factor that decides the fate of y.

jenyasd209 [6]3 years ago

5 0

NO !

It means that (one of them) divided by (the other one) is always the same number.

(Other people probably won't explain it to you this way, but I'm special, and this is true.

Anyway, the direct answer to your question is: No.)

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Keith_Richards [23]

Answer:

Explanation:

mass of the astronaut including the spacesuit, $M=30$

distance of astronaut from the spaceship, d = 13 m

mass of the oxygen tank, m = 3 kg

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Answer:

Explanation:

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3 years ago

Four students measure the mass of a standard mass that has an accepted value of 150.0 g. They post their results in a table.

Eddi Din [679]

Explanation:

This problem seeks to ensure that the student comprehends the meaning of precision and accuracy.

These two key terms are used to express how reliable experimental values obtained are.

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In the problem given, the most accurate reading would be one that has value close to the standard mass of 150g. Any student that reports this value would be reported as accurate.

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3 years ago

The half-life of radium-224 is approximately 3.66 days. Step 1 of 3 : Determine a so that A(t)=A0at describes the amount of radi

Dafna11 [192]

Answer:

a = 0.827468

Explanation:

given,

half life of radium-224 = 3.66 days

now,

$A(t) = A_0 a^t$

t is the time

A₀ is the amount at t = 0

at t = 0 , A(0) = 1

A(3.66) = 1/2

at t = 3.66

$A(t) = A_0 a^t$

$\dfrac{1}{2}= 1. a^{3.66}$

taking log both side

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log a = -0.0822

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3 years ago