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Question: Repeat Problem for a nine-element array.
Problem: Find and plot the normalized array factor and determine the half-power beam width for a five-element linear array excited with equal phase and a uniform amplitude distribution. The interelement spacing is 3λ/4.
Throughout liftoff, a hot-air balloon accelerates upward at a rate of 3m/s^2. The balloonist drops an object over the side of the gondola when the speed is 13m/s.
Cars A and B move in the same direction in adjacent lanes. For that value of aB, how many times are the cars side by side
A rock is thrown down a well that is 8.85 meter deep. The splash is heard 1.20 sec later. Evaluate how deep is the well
Find the electric energy density between the plates of a 225-?F parallel-plate capacitor. The potential difference between the plates is 350V
A lowly high diver pushes off horizontally by a speed of 2.77 m/s from the edge of a platform that is 10.0 m above the surface of the water. (a) At what horizontal distance from the edge of the platform is the diver 0.885 s after pushing off?
Gravity on the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 16 kg object on the moon and on the Earth? What is its mass on the moon and on the Earth?
Messages reach at random to be sent across a communications link with a information rate of 9600 bps. The link is 70 percent utilized, and the average message length is 1000 octets.
an oxygen cylinder for medical use contains oxygen at a pressure of 155 atm at room temperature 20c. the cylinder
A submerged submarine alters its buoyancy so that it initially accelerates upward at .325m/s^2. What is the submarine;s average density
Consider the arrangement of three plates, each of area A = 25.0 cm2. If d = 0.100 mm, what is the capacitance of the structure. You may assume one terminal is attached to the wire on the left and the other terminal is attached to the middle plate
You are in a hot air balloon (yes, another balloon problem!) rising from the ground at a constant velocity of 2.70 m/s upward. To celebrate the takeoff, you open a bottle of champagne, expelling the cork with a horizontal velocity of 4.00 m/s rela..
is any work done when moving a charge along a field line?a. yes the field does positive work when a positive charge
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