A radar installation operates at 9000 MHz with an antenna (dish) that is 15 meters across. Determine the maximum distance (in kilometers) for which this system can distinguish two aircraft 100 meters apart

a. 7.4 km
b. 370 km
c. 3700 m
d. 37 km
e. 740 km


d

Physics & Space Science

You might also like to view...

As viewed from any place within the continental United States, noon on apparent solar time is defined as the moment when the Sun is

A) directly south. B) directly overhead. C) ante meridiem. D) at a right ascension of 0 hours.

Physics & Space Science

A beam of photons of wavelength 0.55 nm undergoes Compton scattering from free electrons.What is the energy of the photons that emerge at a 35° angle with respect to the incident beam?

a. 2.3 keV b. 10.9 keV c. 36.0 keV d. 3.0 keV

Physics & Space Science

Two or more forms of the same element that have different bonding structures in the same physical phase are called

a. isobars. b. allotropes. c. isotopes. d. isomers.

Physics & Space Science

A child sits on a swing supported by ropes of length 4.0 m. With what frequency will she need to apply the driving force to maintain swinging?

a. 0.29 Hz c. 0.25 Hz b. 0.48 Hz d. 0.38 Hz

Physics & Space Science