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astra-53 [7]
3 years ago
15

If the temperature of this balloon were to decrease suddenly, how would the balloon change?

Physics
1 answer:
poizon [28]3 years ago
4 0
D. it’s volume would decrease
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I believe Newton's 1st law is
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The first law states that if the net force is zero, then the velocity of the object is constant.

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Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 30 seconds and then turns around and jogs 10
Tema [17]

Answer:

Explanation:

(a) It is given that Joseph jogs on a straight road of 300m in a time interval of 2 minutes and 30 seconds, which is equal to 150seconds. Therefore, when Joseph jogs from point A to point B, he covers a distance of 300m in time of 150seconds. Hence, his average speed is 300m/150s=2ms^−1. Since it is a straight road and he jogs in a single direction in this case, his displacement is equal to 300m. Since it is a straight road and he jogs in a single direction in this case, his displacement is equal to 300m.

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(b) Then it is given that he turns back and points B and jogs on the same road but in the opposite direction for a time interval for 1 minute and covers a distance of 100m.If we consider the whole motion of Joseph, i.e. from point A to point C, then he covers a total distance of 300m+100m=400m. And he covers this total distance in a time interval of 2.5min+1min=3.5min=210s.

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For the same journey is displacement is equal to the distance between the points A and C,i.e. 300m−100m=200m.

Hence, his average velocity for this case is 200m/210s=0.95ms^−1

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Poor measurement practices are likely to lead to data that are.....
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Answer and explanation;

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-Convention Current is the movement of fluid caused by the differences in temperature. Transference of heat from one part of a fluid to another.

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