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An Am broadcast station in Oman is allowed to transmit modulating frequencies up to 5 KHz. Calculate the maximum and minimum upper and lower sidebands and the total bandwidth occupied by the AM station if its transmitting frequency is 740 KHz.
A modulating signal m(t)=10cos(2π×103t) is amplitude modulated with a carrier signal c(t)=50cos(2π×105t). Find the modulation index, the carrier power, and the power required for transmitting AM wave.
Given 2 containers both filled with water. Container A has hot water while B has cold
one, what will happen to its temperature if you put the 2 containers in close contact?
Using the laws of physics and chemistry, explain the reason why certain materials can
conduct heat, while others cannot
Describe the mode of operation of one instrument which uses the radiation heat transfer
mechanism
matter has a body-centered cubic unit cell with a length of 330 𝑝𝑚 along an edge
and a density of 8.57 𝑔 𝑐𝑚−3
. Calculate the atomic mass of the matter.
a) Define viscosity.
b) A matter has a body-centered cubic unit cell with a length of 330 𝑝𝑚 along an edge and a density of 8.57 𝑔 𝑐𝑚−3 . Calculate the atomic mass of the matter.
c) Find the total energy of a moving object of mass 6.3 𝑘𝑔 and momentum 11.5 × 106 𝑘𝑔𝑚𝑠 −1 .
Explain why the angle is important when launching projetiles.
Find the distance travelled when the intial angular velocity is 3 rad/s , the final angular velocity is 25rad/s , the time of motion is 10s.
I rode my bicycle to my grandmother's house at 6 km/hr on a flat road for 5 minutes before reaching a hill. I went at 2 km/hr up the hill for 3 minutes. I met a friend and stopped to talk for 5 minutes . I went on at 2 km/hr to my grandmother's house. draw ( plot ) the velocity against the time graph for this motion
