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Circular apertures are often involved in the transmissio of EM waves over long distances. Discuss how this would affect communications to the moon from a circular radio antenna such as Morehead State's 21m diameter satellite tracking antenna operating at a radio wave frequency of 7139.5 MHz. What would happen to the signal beam and why might it matter? You may need to look up the distance to the moon. Please include some calculations in your discussion.
How to convert from a displacement vs time graph given, to velocity AND acceleration vs time graphs?
A basketball player makes a jump shot. The 0.650-kg ball is released at a height of 1.90 m above the floor with a speed of 7.17 m/s, What is the work done on the ball by air resistance, a nonconservative force
In the continuous-caster process, steel sheets 25.3cm thick, 2.05m wide, What are the dimensions of a steel sheet once it has cooled to 21.0C
a 2.745 kHz the reactance in a circuit of a 4uF capacitor and an inductor are equal in magnitude. what is the value of the inductor
A hydrogen atom is in the ground state. It absorbs energy and makes a transition to the n = 4 excited state. determine the photon wavelengths of the first transitions
A truck is moving at 150 km/h and approaches a stationary policecar that has a radar speed detector operating at 15 GHz. What wil lbe the frequency change found by the speed detector?
A television broadcast antenna is located at the top of a steep tall mountain. The television station broadcasts by a power of4.00 kilowatts at a frequency of 180.0 MHz. (rms =“Root Mean Square"= square root of the average value of a function squared..
A block is on a rough horizontal surface. A horizontal force of magnitude 3 N is applied to the block. What is the frictional force exerted on the block
You throw a ball vertically upward at 22.3 m/s, and then catch it at the same height that you released it. find the ball's speed just before it returns to your hand
Using a vernier caliper of least count 0.01 cm, the length of a cylinder is measured to be 3.76 cm, and its diameter 1.28 cm. 1-Find the volume of the cylinder. 2-Calculate the probable percent error in the length. 3-Calculate the probable percent..
The drawing shows three materials, a, b, and c. A ray of light strikes the a–b interface at an angle that now barely exceeds its critical angle of 40.0°. The reflected ray then strikes the a–c interface at an angle of incidence that now barely exceed..
Assume that v = 4.50 m/s, a = 10.00 mm, L = 16 cm and i = 100 A. The rod has a resistance of 0.550Ω and the rails and connectors have negligible resistance. What emf is generated? What is the current in the rod?
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