The movement of charged particles in a fluid under the influence of an electric field
The scratch test.
The scratch test is used by scientists and people who study rocks and minerals to determine the strength of the rock. They have the scratchers numbered one through ten and scratch the rock or mineral until the scratcher makes a mark in the mineral then they know the strength of the rock.
Question options:
A. 1.63
B. 0.47
C. 0.94
D. 1.15
Answer:
<u><em>A. 1.63</em></u>
Explanation:
To find the standard deviation,
we have the data:
6, 6, 10, 8, 10, 8
sum = 6 + 6 + 10 + 8 + 10 +8
= 48
mean = 48 / 6
= 8
Formula for standard deviation:
σ2 = Σ(xi - μ)2 / N
= Σ (6-8)2 +....+ (8-8)2 / 6
= 16 / 6
σ2= 2.67
σ = 
σ = 1.63
If i remember correctly it would be the Cell Membrane