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jolli1 [7]
3 years ago
10

Which property of a substance is not affected by physical changes?

Physics
1 answer:
LiRa [457]3 years ago
6 0
Reactivity is not affected by physical changes.

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A highly volatile substance has an initial mass of 1200 g and its mass is reduced by 12% each second.
Softa [21]

Answer:

Explanation:

a) 1.00 - 0.12 = 0.88

m = 1200(0.88)^t

b) t = ln(m/1200) / ln(0.88)

c) m = 1200(0.88)^10 = 334.20 g

d) t = ln(10/1200) / ln(0.88) = 37.451... = 37 s

e) t = ln(1/1200) / ln(0.88) = 55.463... = 55 s

4 0
3 years ago
You are faced with situations every day where you have to make choices, and there is a deep reason that compels you to do so. So
iren [92.7K]

Why did you put this here?

6 0
3 years ago
40 POINTS EASY
11111nata11111 [884]
We know, Mechanical Energy = K.E. + P.E.
As ball is at ground, P.E. would be zero. But as it is in motion, it must have some K.E. and that is:

K.E. = 1/2 mv²
K.E. = 1/2 * 1 * 2²
K.E. = 4/2
K.E. = 2 J

In short, Your Answer would be Option B

Hope this helps!
7 0
3 years ago
A bicyclist travels 30 km in 2 hours, what is their average speed?
Mamont248 [21]

Explanation:

average speed = total distance ÷ total time taken

=30÷2 = 15 km/h

3 0
3 years ago
What is the relevant similarity of the following argument?
meriva
B. Tolerating a bully or dictator leads to further abuse
3 0
3 years ago
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