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Question: Compare directivity Dant of a 1 m diameter antenna aperture operating at 10 GHz with directivity Deye of the eye's pupil operating in the middle of the visible spectrum at λ = 0.5 μm. Treat the pupil as a circular aperture with a diameter of 4 mm. The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.
A uniform chain with a mass of 1.23 kg per meter of length is coiled on a table. One end is pulled upward at a constant rate of 0.523 m/s. Calculate the net force acting on the chain
A bicycle break pad is pushed against the moving rim of the wheel with a force of 80 N and the dynamic coefficient of friction is 2.2, What is the shear modulus of the rubber that the pad is made from
A parallel plate capacitor has an electric field between its two plates of 525,000 V/m. The two plates are 2.2x10-5 m apart. find the speed of the proton when it reaches the negative plate
Blood is flowing through an artery of radius 4 mm at a rate of 35 cm/s. Determine the flow rate and the volume that passes through the artery in a period of 40 s.
What are three more examples (one each) for three sections of the electro-magnetic spectrum from everyday life?
The speed of light in a particular type of glass is 1.69 108 m/s. What is the index of refraction of the glass
A cord is used to vertically lower an initially stationary block of mass M = 8.0 kg at a constant downward acceleration of g/2. When the block has fallen a distance d = 4.6 m, find the work done by the cord's force on the block
he edge of the thimble of a micrometer moves a distance of 2.0 mm when it is given four complete revolutions. calculate the least count of the micrometer
A 2.0 m conductor is formed into a square and placed in thehorizontal xy-plane. find What is the magnetic flux through the conductor
A penny is placed at the outer edge of a disk radius = .150 m that rotates about an axis that is perpendicular to the plane of the disk at the center. The period of the rotation is 1.80 s. Find out the minimum coefficient of friction neccesary to..
A conductor with an inner cavity, like that shown in Fig.22.23c from the textbook, carries a total charge of +4.70 nC. How much charge is on the outer surface of the conductor
a diffraction grating with 345 linesnm is 1 m in front of a screen. what is the wavelength of light whose first-order
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