A material can have an index of refraction less than unity. True False
Q: The interior of a satellite TV antenna is a dish having the shape of a (finite) paraboloid that has…
A:
Q: Find the value of midspan deflection for the beams shown? 900N/m 400N 600N.m Im Im 3m 2m 2m
A: As there are two different questions posted, according to the guidelines, only the first is being…
Q: :Double refraction of light occurs as it passes through
A:
Q: Explain what is meant by "residual stresses" in a material and how X-ray diffraction analysis can be…
A: When a load or external force is applied on a body then on response of that Internal forces are…
Q: What is the maximum deflection of the beam in terms of El? 10 KN/m A. 10 m
A: Given: Uniformly distributed load, w = 10 kN/m Length of beam, L = 10 m
Q: An upward vertical incident light ray is aimed towards a plane mirror attached to the wall and…
A:
Q: Consider the system showed below placed in air. The lens is made from glass with an index of…
A: Focal length is the basic description of a photographic lens. The longer the focal length, the…
Q: Gravity field variations on the surface :
A: Solution: Gravity field variations on the surface: The correct answer to above given question is…
Q: 8. Both ends of a U-tube manometer are exposed to the atmosphere. There exists a possibility that…
A: True
Q: Explain how to use a reflection map to mimic reflection from various roughness surfaces
A: The rule of reflection still applies to rough surfaces. Because the normal to a rough surface varies…
Q: A box structure of mild steel is acted wall of dimensions 200mm*100mm. The hole of the diameter 30…
A:
Q: 120 kN в B D -7 m- - 3 m– 5 m EI = constant E = 200 GPa I = 262 (10°) mm
A: The virtual work done method or unit load method: which use the law of the conservation of energy on…
Q: This instrument is called a penetrometer.
A: penetrometer is used to find strength of material.
Q: in a two-layer case model, if the offset reflection time from the bottom of the first layer is 300…
A: Given- Two-layer case model- offset reflection time t=300 ms=300×10-3 svelocity of the top layer v=…
Q: The focal length of a concave mirror is 10 cm and the object distance is 15cm. Determine (a) the…
A: Note - Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the…
Q: 10. Which among the following determines the geometric orientation of transverse waves? a) Dichroism
A: To find : Geometric orientation of transverse wave.
Q: the value of P and w are unknowns using DIM.
A:
Q: what is the largest allowable intensity wo of
A:
Q: Resonance occurs when the driving frequency is equal to the natural frequency. a. True O b. False
A:
Q: Two parallel plates of area 100 cm2 are given charges of equal magnitudes 0.000000445 C but opposite…
A: Given data A = area of the plate =100 cm2Q = charge on the plates =4.45×10-7 CE =electric…
Q: In Active Remote Sensing, the interaction between vegetation and the ground Select one: O a. Volume…
A: Double bounce scattering
Q: The critical angle for water is 48-2°. Find its refractive index.
A: Critical angle of water = 48.2° Refractive index= 1/sin 48.2°= 1.3414 Refractive index of water=…
Q: Axis of rotoinversion indicates إختر أحد الخيارات: translation + inversion .a O penetration +…
A: Brief concept introduction- Axis of rotoinversion- Rotation around a rotation axis is combined with…
Q: flection on Change Detection in Unmanned Aerial Vehicle Images for Progress Monitoring of Road…
A: Introduction- Presently, automated ethereal vehicles are progressively being utilized in different…
Q: etermine the moments of inertia of the shaded area about the x- and y-axes.
A: For quarter circle Moment of inertia for axes through corner Ix=Iy=πR416 For quarter circle spandrel…
Q: It is recommended to determine the surface Rayleigh wave propagation notion h) Thr tion b) The imu…
A:
Q: 1. By using Conjugate Beam Method, Determine the deflection at the midspanof the beamshown. 30 kN/m…
A:
Q: It is given that 3 day BOD of a sample is 75 mg/lt and the reraction rate constant is 0.345/day.…
A: Given: 3 days BOD, L3 = 75 mg/lt Reaction rate constant, k = 0.345
Q: a) What are the phase shifts? b) What is the directivity of the array?
A:
Q: 2. The layer that is influenced by a planetary boundary is called
A: To find : Layer which is influenced by planetary boundary.
Q: w = 15 KN/m E 200000 MPa I = 220x10°mm* 6m
A: The magnitude of uniform varying load, w=15KNmThe length of cantilever beam, L=6mModulus of…
Q: In visible absorption measurements, what is the effect of sample turbidity or cloudiness? a.)…
A: This question is related to Environment and waste water Engineering. In this question ask about…
Q: LIGHT COEFFICIENT 1. objective method of artificial illumination 2. method of tentative…
A: Light coefficient- It is a measure of the efficiency of a luminaire. It is expressed as the ratio of…
Q: enumerate 5 examples of sound- reflecting materials (solid materials)
A: When sound waves incident on any object, a part of the sound waves gets reflected from the surface…
Q: Additive Synthesis applies to paints whereas Subtractive Synthesis applies to light Select one: O…
A: True Because additive synthesis is used when shades of light are used to create colours while…
Q: Mica, the bright, flakey mineral in mica schist, is closely related to clay minerals and offers an…
A:
Q: The difference between face left and face right observation of a theodolite is 3'. The error is
A: given- difference between face left and face right observation=3'
Q: 2) The beam from a small laboratory laser typically has an intensity of about 1.0 x 10-3 W/m2.…
A:
Q: w=10N/mm 10m
A:
Q: What are the disadvantages of critical angle refraction?
A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…
Q: dis AçP
A:
Step by step
Solved in 2 steps
- Find effective elasticity (stiffness) tensor of a two-phase layered composite material with plane layers which have different elasticity tensors. Specify the formula for the case of isotropic phases. Find effective elasticity module corresponding to tension perpendicular to the layers.for a given composite figure determine the moment of inertia with respect to its centroidCompare the desired properties of the matrix and the fiber phases of the fiber reinforced composite.
- A steel bar and an aluminum bar are bonded together as shown to form a composite beam. Knowing that the vertical shear in the beam is 4 kips and that the modulus of elasticity is 29 * 106 psi for the steel and 10.6 *106 psi for the aluminum, determine (a) the aver-age shearing stress at the bonded surface, (b) the maximum shearing stress in the beam.A composite beam is made of two brass (E =110GPa) to two aluminum bars (E = 70GPa), as shown. The beam is subjected to a bending moment of 380 N-m acting about the z-axis. Using a = 5mm, b = 40mm, c = 10mm, and d = 25mm. Calculate: a) the maximum bending stress in the aluminum bars b) the maximum bending stress in the brass barsA composite bar is rigidly attached to the wall at A as shown, Axial loads are applied at the positions indicated. -Determine axial stress in member AB (in MPa unit) - Determine the displacement of joint C (in mm unit) -Determine the deformation in member BC (in mm unit)
- A composite column is formed by placing a steel bar, 20 mm in diameter and 200 mm long, inside an alloy cylinder of the same length whose internal and external diameters are 20 mm and 25 mm, respectively. The column is then subjected to an axial load of 50 kN. If E for steel is 200 OOO N/mm’ and E for the alloy is 70 000 N/mm’, calculate the stress in the cylinder and in the bar, the shortening of the column and the strain energy stored in the column.Calculate the modulus of elasticity of fiberglass under isostrain condition if the fiberglass consists of 70% E-glass fibers and 30% epoxy by volume. Also, calculate the percentage of load carried by the glass fibers. The moduli of elasticity of the glass fibers and the epoxy are 70.5 and 6.9 GPa, respectively. If a longitudinal stress of 60 MPa is applied on the composite with a cross-sectional area of 300 mm2, what is the load carried by each of the fiber and the matrix phases?What is the strain sustained by each of the fiber and the matrix phases?Estimate the tensile strength required to prevent cracking in a concrete-like material that is cast into a bar, 50 in. long, and is fully restrained at each end against axial movement. The concrete is initially cast and cured at a temperature of 100°F and subsequently cools to a temperature of 0°F. Assumethat the modulus of elasticity is 5 million psi and the thermal coefficient is 5 * 10-6 in./in./°F.
- Water from a reservoir flowing through a pipe with a diameter of 600mm at 1.80m/s is completely stopped by a closure of a valve situated 150m from the reservoir. The pipe has a thickness of 20mm. The modulus of elasticity of the pipe is 1.40x10¹¹ Pa. The bulk modulus of water is 2.20x10ºPa. Assume that the pressure increases at a uniform rate and there is no damping of the pressure wave. Which of the following most nearly gives the composite bulk modulus of elasticity of the pipe and water?The composite bar shown is rigidly attached to the two supports. The left portion of the bar is copper, of uniform cross-sectional area 80 c?^2 and length 30 cm. The right portion is aluminum, of uniform cross-sectional area 20 c?2 and length 20 cm. At a temperature of 26℃ the entire assembly is stress free. The temperature of the structure drops and during this process the right support yields 0.025 mm in the direction of the contracting metal. Determine the minimum temperature to which the assembly may be subjected in order that the stress in the aluminum does not exceed 160 MPa. For copper E = 200 GPa, ? = 17x10^-6/℃, and for Aluminum E = 80 GPa, ? = 23x10^-6/℃.Name three functions of the matrix phase in fiber-reinforced composites.State the reason for the need for a strong bond between the fibers and the matrix.