Chapter 5, Problem 16QAP

Find

1.0 Half-power point (left) 0.5 Minor lobes Main lobe maximum direction Main lobe Half-power point (right) Half-power beamwidth (HP) Beamwidth between first nulls (BWFN) *Which of the following Lobes of an antenna Pattern 180 out of Phase the main Lobe ? And where are the ch other gems ?

10-50. The principal plane stresses and associated strains in a plane at a point are σ₁ = 30 ksi, σ₂ = -10 ksi, e₁ = 1.14(10-3), €2=-0.655(103). Determine the modulus of elasticity and Poisson's ratio. emps to plum... Wednesday FI a וח 2 Q Search 48 F5 - F6 4+ F7 FB F9 FIO FII F12 & * S 6 7 8 9 ㅁ F2 # *F3 3 $ 4 F4 % W E R T Y ப S ALT D F G H X C V B N J Σ H L ว { P [ ] ALT " DELETE BACKSPACE NUM LOCK T 7 HOME ENTER 4 PAUSE SHIFT CTRL E

10−9. The state of strain at the point has components of   ϵx = −100(10−6),   ϵy = −200(10−6), and γxy=100(10−6). Use the strain transformation equations to determine (a) the in-plane principal strains and (b) the maximum in-plane shear strain and average normal strain. In each case specify the orientation of the element and show how the strains deform the element within the x−y plane.

The strain gage is placed on the surface of the steel boiler as shown. If it is 0.5 in. long, determine the pressure in the boiler when the gage elongates 0.2(10−3) in. The boiler has a thickness of 0.5 in. and inner diameter of 60 in. Also, determine the maximum x, y in-plane shear strain in the material. Take Est=29(103)ksi, vst=0.3.

The normalized radiation intensity of an antenna is represented by U(0) = cos² (0) cos² (30), w/sr Find the a. half-power beamwidth HPBW (in radians and degrees) b. first-null beamwidth FNBW (in radians and degrees)

Determine the vertical reaction at A for the beam shown and a settlement of ½" at support B.   a. 45.6 k     b. 41.6 k     c. 42.7 k     d. 40.7 k

What is the horizontal reaction at A for the frame shown 4?   a. 2.42 k     b. 15.00 k     c. 27.58 k     d. 25.00 k

Determine the bending moment at support A for the beam shown using the slope-deflection method. Use the sign convention defined in the chapter.   a. 232.9 k-ft     b. -182.1 k-ft     c. 182.1 k-ft     d. -232.9 k-ft