Answer:
B
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
A 2024-T4 aluminum tube with an outside diameter of 3.6 in. will be used to support a 24-kip load. If the axial stress in the member must be limited to 6.4 ksi, determine the wall thickness required for the tube.
Given:
To find:
The exact value of cos 15°.
Solution:
Using half-angle identity:
Using the trigonometric identity:
Let us first solve the fraction in the numerator.
Using fraction rule:
Apply radical rule:
Using :
M is the slope in the equation y = mx + b
hope that helps