Answer:
Step-by-step explanation:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given:
Force, f = 9000 lb
Young modulus, E = 10,000,000 psi
Stress, S = 30000 psi
Elongation, x = 0.50 in
Length, L = 16 ft
Converting ft to in,
12 in = 1 ft
= 192 in
Young modulus, E = stress/strain
Stress = force/area, A
Strain = elongation, x/Length, L
Maximum stress = 30,000 psi
Stress = force/area
Area = 9000/30000
= 0.3 in^2
Using minimum area of 0.3 in^2,
A = (pi × d^2)/4
0.3 = (pi × d^2)/4
= sqrt(1.2/pi)
diameter, d = 0.62 inches
The answer to this is a=3.6
<span>7x+1 < 4(x-2) simplify gives
7x+1 < 4x-8 and collect terms...
3x < -9 i'd solve it as an equality
3x = -9 giving
x = -3 see if zero is in the solution set
7*0 +1 < 4(0-2)
1 < -8 false so
x < -3 (doesn't contain zero)
and: x < - 3
I hope this helped!
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