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poizon [28]
3 years ago
9

5. Alex goes cruising on his dirt bike. He rides 700 m north, 300 m east, 400 m north, 600 m west, 1200 m south 300 m east and f

inally 100 m north. What distance did he cover? What was his displacement? (use 1cm = 100m)
Physics
1 answer:
Gala2k [10]3 years ago
5 0

Answer:

Explanation:

i hope your mind is clear your full answer in image

please see in image

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What are the characteristics of scientific thinking and investigating
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Answer:

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Explanation:

following are characteristics of scientific thinking and investigating

1. Critical thinking

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4. Problem solving attitude

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A scientific theory is a unifying and self-consistent explanation of fundamental natural processes or phenomena that is totally constructed of corroborated hypotheses

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A wave has a wavelength of 5 meters and a frequency of 3 hertz. What is the speed of the wave?
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A 1-kg iron frying pan is placed on a stove. The pan increases from 20°C to 250°C. If the same amount of heat is added to a pan
sergejj [24]

Here mass of the iron pan is given as 1 kg

now let say its specific heat capacity is given as "s"

also its temperature rise is given from 20 degree C to 250 degree C

so heat required to change its temperature will be given as

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Q = 1*s*(250 - 20)

Q = 1*s*230

now if we give same amount of heat to another pan of greater specific heat

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now the increase in temperature of another pan will be given as

Q = ms'\Delta T

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now we have

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now as we know that s' is more than s so the ratio of s and s' will be less than 1

And hence here we can say that change in temperature of second pan will be less than 230 degree C which shows that final temperature of second pan will reach to lower temperature

So correct answer is

<u>A) The second pan would reach a lower temperature.</u>

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