
Find force in x and y direction. Find angle of resultant and
resultant.
500 N 24 5 L=1460 mm 200 N 1100 mm 960 mm 3
500 N 24 5 L=1460 mm 200 N 1100 mm 960 mm 3
3 (75 mm) -3" 75" (175 mm) (125 mm) 150 mm 75 mm (100 mm) 1100 mm) -22" (ww 095) - 16" wwood) - 18- (450 mm) -12 - (300 mm) 4 #8 4 x 25 mm) 5# 8 (5 x 25 mm) -12" (300mm (50 mm) 2" (50 mm) (b) 12" (300 mm) 3.9 Determine the design moment strength of the sections shown in Fig. 3.41. Neglect the lack of symmetry in (b). Given: f = 4 ksi (30...
For the 770-N load F applied at A, find a. the magnitude of ri b.0 (the angle between ri and the force F) c. IIMIl for a moment center at C ssume rr = 85 mm and Pr = 198 mm.
A 15-mm layer of paint is applied to one side of the following surface. Find the approximate volume of paint needed. Assume that x and y are measured in meters The spherical zone generated when the curvey=36x on the interval 11.6 is revolved about the x-axis The volume of paint needed is 252 m (Type an exact answer, using x as needed)
For the symmetrical K-truss shown, find the forces in the truss members LE and ER. Loadings and dimensions are shown on the sketch. (Hint: you may need to calculate forces in other members to find the force in member ER) 20' 5 kips5 kips 5 kips 5 kips 5 kips 5 kips 5 kips 8 x 10' 80
Demand for apartments in a certain town is D(x)=670 - 5x, and the supply is S(x) 400 + 10x, where x is the number of apartments, in hundreds, and D(x) and S(x) are the rent in dollars per month, per apartment a) Find the equilibrium point. b) Find the consumer surplus and producer surplus. c) Suppose a maximum rent of $480 per month is imposed by the town council. Find the point (*c. PC) d) Find the new consumer surplus...
Consider the following hypotheses: H0: μ ≤ 610 HA: μ > 610
Find the p-value for this test based on the following sample
information. (You may find it useful to reference the appropriate
table: z table or t table)
a. x¯ = 618; s = 24; n = 26
p-value 0.10
0.05p-value
< 0.10
0.01
p-value < 0.025
p-value < 0.01
0.025 p-value < 0.05
b. x¯ = 618; s = 24; n = 52
0.025p-value
< 0.05
p-value
0.10...
two-member truss is subjected to a load P 8000 N. Me mber 1-2 is 400 mm long. 4.12. A ember 1-3 was manufactured to be 505 mm long instead of 500 mm. However, it was forced into place. Determine stresses in the members assuming that member 1-3 was manufactured to its correct (a) the length of 500 mm load P, of course). pression in the text.) Take cross-sectional areas 750 mm2, E 200 GPa (b) thestresses in the members as...
imple 6 – Truss 6000 lb 12 000 lb Given: Truss structure as shown. Find: Forces in each member: AB, BC, AD, EF, BD, BE, CE, CF - 6 ft- - 6 ft- Member specifications: JL AD, DE, EF L2x2xy-doubled BD, CE, BE L2 x 2 x 18-single- AB, BC, CF C3 x 4.1 - doubled -
A 3 mW red ( = 670 nm) laser pointer produces a 2 mm diameter spot on a screen. a) If we place a f = 1cm lens before the screen, and the radius of curvature of the wavefront reaching the lens is 2 m, find the waist of the focused light. b) The intensity of the light at the center of the beam is given by Imax= 2P/πw2(in W/m2). Calculate the maximum intensity at the focal point. c) If...