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April 20, 2024, 09:00:34 am
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Author Topic: Could someone please explain this question  (Read 1067 times)  Share 

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jando

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Could someone please explain this question
« on: July 11, 2019, 01:02:08 pm »
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Hey,

I was wondering if someone could explain this question to me.
The answer is B.

Cheers.
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DrDusk

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Re: Could someone please explain this question
« Reply #1 on: July 11, 2019, 05:04:35 pm »
+1
Quote from: jando on July 11, 2019, 01:02:08 pm
Hey,

I was wondering if someone could explain this question to me.
The answer is B.

Cheers.
Recall the formula:



Thanks to r1ckworthy for pointing out my mistake in converting Grams to Kg hahaaha
« Last Edit: July 11, 2019, 05:20:22 pm by DrDusk »
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r1ckworthy

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Re: Could someone please explain this question
« Reply #2 on: July 11, 2019, 05:12:52 pm »
+1
Quote from: DrDusk on July 11, 2019, 05:04:35 pm
It appears they've made a mistake.
Recall the formula:

In their calculations I think they've forgotten the Pi which gives you the answer of 1.9. The actual answer would be:


Hey DrDusk,
Your conversion for 'm' is wrong, it should be 0.015 kg instead of 0.15 kg, which when I calculated it checks out to B  ;D. Great explanation!
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DrDusk

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Re: Could someone please explain this question
« Reply #3 on: July 11, 2019, 05:19:16 pm »
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Quote from: r1ckworthy on July 11, 2019, 05:12:52 pm
Hey DrDusk,
Your conversion for 'm' is wrong, it should be 0.015 kg instead of 0.15 kg, which when I calculated it checks out to B  ;D. Great explanation!

Oh god, today I realized how stupid I am lol. I can't even properly convert units  ;D
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r1ckworthy

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Re: Could someone please explain this question
« Reply #4 on: July 11, 2019, 05:25:46 pm »
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Quote from: DrDusk on July 11, 2019, 05:19:16 pm
Oh god, today I realized how stupid I am lol. I can't even properly convert units  ;D

Hey, it happens to the best of us ;D
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HSC 2019: English Advanced || Mathematics || Mathematics Extension 1 || Physics || Chemistry || Science Extension || Ancient History ||

Bachelor of Physiotherapy @ ACU

The Yr12 journey- a diary I "hope" to update... || Halfway through Year 12... lessons I've learned so far. || Check out my youtube channel!
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