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An airplane flying at a distance of 30 km from a radio transmitter receives a signal of intensity 25 µW/m2. The transmitter radiates uniformly over a hemisphere.
a) Compute the transmission power of the transmitter.
b) What is the amplitude of the magnetic component of the signal at the airplane?
c) What is the amplitude of the electric component of the signal at the airplane?
a 6.0 cm diameter horizontal pipe gradually narrows to 4.5 cm. When water flows through the pipe at a certain rate, What is the volume rate of flow
1.define a lie in the strict or formal sense.2.explain what is meant by communication?3.what is the principal purpose
You have been called to testify as an expert witness in a trial involving an automobile accident, determine that the coefficient of kinetic friction between the wheels and the pavement at the time of the accident was 0.59
a car tyre has an internal volume of 2.2 times 10-2 m3. one day when the car has been left standing and the temperature
A rotating wheel requires 5.00 s to rotate 26.0 revolutions. What is the constant angular acceleration (in rad/s) of the wheel
Two small, positively charged spheres have a combined charge of5.2*10-5 C. If each sphere is repelled from the other by an electrostatic force of 2.25 N when the spheres are 1.6 m apart, what is the charge on sphere with the smaller charge?
Atmospheric boundary layer is of typical height of 1 km. Is atmospheric flow in this layer laminar or turbulent? Justify your answer with typical properties such as wind speed and viscosity of air.
An air conditioner draws 14 A at 220-V ac. The connecting cord is copper wire with a diameter of 1.758 mm. how much power does the air conditioner draw
A typical lightbulb in your house is rated 75 W, which means that the bulb dissipates 75 Wwhen connected to a DC voltage of 110 V. What is the current?
Sodium ions (Na+) move at 0.841 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
as a helicopter carrying a crate takes off its vertical position as well as the crates is given as yt at3 where a is a
a free electron and a free proton are exactly 1.3 cm apart.a find the magnitude of the acceleration of the proton.
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