This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A radar installation operates at 9 000 MHz with an antenna (dish) that is 15 meters across. ... (Read 61 times)

ETearle

  • Hero Member
  • *****
  • Posts: 580
on: Jul 28, 2018
A radar installation operates at 9 000 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

Question 2

A binary star system in the constellation Orion has an angular separation between the two stars of 1.2  10-5 radians. If l = 5  10-7 m, what is the smallest aperture (diameter) telescope that may be used to resolve the two stars?
 a. 10 cm
  b. 5 cm
  c. 50 cm
  d. 1 m
  e. 4 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ynlevi

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


ETearle

  • Member
  • Posts: 580
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

xiazhe

  • Member
  • Posts: 331
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Pacific hagfish at 150 meters depth, California, Cordell Bank National Marine Sanctuary. Pacific hagfish at 150 meters depth, California, Cordell Bank National Marine Sanctuary.
Food dish Food dish
Mold is growing on red/green agar in a divided Petri dish. Mold is growing on red/green agar in a divided Petri dish.
A fluorescent trouble light operates cooler and is safer to use in the shop because it is protected ... A fluorescent trouble light operates cooler and is safer to use in the shop because it is protected ...
Shoulder Installation Shoulder Installation
Cuban Steak Dish Cuban Steak Dish
Video: Pressure Flow Model Animation

For a complete list of videos, visit our video library