Answer:
k = 39.2 N / m
Explanation:
The 200 g block is accelerated by the force of friction between the blocks. Let's use Newton's second law
N- W = 0
N = W
fr = ma
μ N = ma
μ mg = ma
a=μ g
Let's look for the acceleration of the largest block that has oscillatory movement
x = A cos (w t)
A = 0.05 m
The maximum acceleration is cos wt = ±1
a = A w2
a = A k / m
We substitute and calculate
μ g = A k / M
k = μ g M / A
The mass that performs the oscillation is the mass of the two bodies
M = m1 + m2
k = 0.2 9.8 (0.800+ 0.200) /0.05
k = 39.2 N / m
Answer:
the reason there is more brown bc the father is brown so the most likely toke his genes.
Answer:
0.333 i1
Explanation:
from figure
iB = i2
i1 = iA
i1 = iA = iB+iC = i2+iC
all resistances are equal o R
i1 = E/[R + 2R||R + R] = E/[8R/3] = 3E/8R
since if v is constant then i is inversely proportional to R
iB/iC = R/2R = 1/2
iC = 2iB = 2i2
and i1 = iB+iC = iB+2iB => i1 = 3iB = 3i2
thus i2 = i1/3
or
the equivalent resistance is
Req = [R || (R+R) ] + ( R + R)
Req = 2R/3 + 2R = 8R/3 ohm
current i1 = E / Req = E / ( 8R/3) = 3E/8R
i1 is divided in two parts as i2 = ib and ic
i1 is divided in i2 and ic in ratio 1 :2
Twice the current will flow through RC as will flow through RB and R2. So the current flowing in R1 and RA is divided by 3,
so i2 is 0.33*i1
i2 = [ 1 / (1+2) ] * i1 = 1/3 * i1
i2 = i1 / 3 = 0.333 i1