A radar used to detect the presence of aircraft receives a pulse that has reflected off an object 3 ✕ 10−5 s after it was transmitted. What is the distance (in m) from the radar station to the reflecting object?
A radar used to detect the presence of aircraft receives a pulse that has reflected off...
Three radar stations, operating independently, are set to detect any aircraft flying through a certain area. Each station has a probability of 0.85 of detecting a plane in its area. If an aircraft enters the area, a. what is the probability that it is detected by all three radar stations? b. what is the probability that the plane is not detected by any of the radar stations? c. what is the probability that the plane is detected by only one...
3. Radar systems detect flying objects by measuring the power reflected from them. A model of the reflected power is given by the PDF fr ) > J e */ otherwise where Po is a constant greater than zero. The object is correctly identified if the reflected power is larger than its average value. Find Pr (C) where C is the event that the object is correctly identified.
1. The proximity sensor is used to a. detect presence of metal in the magnetic field b. detects the presence of light in its field c. identify and count wooden blocks d. provide analog signals to the processor 2. A unique feature of the reflective sensor is that it a. needs a reflector to reflect its LED signal back to the detector b. used the reflection of an object to detect presence C. turns off if the light beam is...
Please help me understand this physics assignment.?
4 [s]. How 9. A radar pulse returns to the transmitter-receiver after a tota far is the the object that reflected the wave? nerreceiver after a total travel time of 10 10 1sl. How 10. Light from the Sun takes 8 minutes and 20 second to reach our planet. Calculate the distance the light travel in this case. 11. One of the closest stars to Earth, other than the Sun, is very very...
4. What is the angle of refraction in water for a ray of light that has an angle of incidence of 45 degrees as it enters a layer of oil from the air above? ( nair=1, noit=1.15, nwater=1.33) a) 27 degrees b) 32 degrees c) 36 degrees d) 39 degrees 5. A radar receiver indicates that a transmitted light pulse return as an echo in 20us after transmission. How far away is the reflecting object? a) 1.5 Km b) 3.0...
As an electromagnetic wave travels through free space, its speed can be increased by: Select one: to increase their frequency. b. None of the above will increase your speed. c. increase your energy only. d. increase both your energy and your momentum. The human eye is sensitive to light with a wavelength of up to 710 nm. What is the radiation frequency at this wavelength? (Inm = 1E- 9m and c = 3.0E + 8m/s) Select one: to. 4.42E+ 6...
An electromagnetic wave in vacuum has an electric field amplitude of 559 V/m. Calculate the amplitude of the corresponding magnetic field. -/8.33 points SerPSE9 34.P.014. x 10* s. How far away is the object that reflected the wave? A radar pulse returns to the receiver after a total travel time of km
Explain your responses in reasonable details. Very brief answers are not acceptable 1) Why does radar employ the technique called pulse delay ranging? (Spts) 2) Speed of light-3x10ms Round-Trip Time-20 μ Calculate Range to the target aircraft.(Spts) 3) to figure above. The measured frequency difference is 10,000 hertz and the transmitter (Spts) has been increasing at a rate of 10 hertz per microsecond. Calculate range. 2) Speed of light 3x108 m/s Round-Trip Time 20 us Calculate Range to the target...
4. [Radar] (10 pts) Identify which object from the following Smal, ingle engline aircraft table is detected at a range of 3-km Four paensinger let giving a return of 0.54nW with the following system working at 3GHz: Large fighter Medium jet airliner Jumbo jet C 40 100 Small open boat Small pleasure boat (20-30 ft) Cabin cruiser (40-50 ft Ship(5,000 tons displacement, L Band Transmitted Power = | 1 kW Antenna efficiency-38% Directivity30dBb/Small truck 0.02 10 10,000 100-200 Bieycle Man...
The motion detector used in a physics lab sends and receives 30 kHz ultrasonic pulses. A pulse goes out, reflects off the object being measured, and returns to the detector. The lab temperature is 20 ∘C. Part A) What is the wavelength of the waves emitted by the motion detector? Express your answer in millimeters. Part B) How long does it take for a pulse that reflects off an object 3.0 m away to make a round trip? Express your...