To solve this question, remember to apply the exponential law, of multiplying powers with the same base, one must add the exponents.
n^5 • n^-5 • k^5 • k^1
n 5 + -5 • k^5 + 1
n ^0 • k ^6
1 • k^6
k^6.
Answer:
8 hours and 54 minuter
Step-by-step explanation:
1 hour is equal to 60 minutes
we have 8 hours and 0.9 hours
0.9*60=54 minutes
we have 8 hours and 54 minuter
Answer:
11/4 is your answer.
Step-by-step explanation:
What you do is you have to times -2 and -11/4 together.
This gives you 22/8.
This can be reduced by 2 to get:
11/4 as your answer.
Answer: 
Step-by-step explanation:
Hooke's law establishes that the elongation of a spring is directly proportional to the modulus of the force 
applied to it, as long as the spring is not permanently deformed:
Where:
is the elastic constant of the spring
is the displacement of the spring after applying the force
In this case we have two springs with constants 
and 
, displacement 
and 
, and the same force is applied to both.
For spring 1:
For spring 2:
Calculating the difference between them:
Finally:
－81＝3(5－4r)
27＝－(5－4r)
27＝－5＋4r
－4r＝－5－27
－4r＝－32
r＝8
Hope my answer helped u :)
