« previous next »

Author Question: A radar pulse returns 3.0 10-4 s after it was sent out and reflected by an object. What is the ... (Read 29 times)

vicotolentino

  • Hero Member
  • *****
  • Posts: 552
on: Jul 28, 2018
A radar pulse returns 3.0  10-4 s after it was sent out and reflected by an object. What is the separation distance of the radar source and the object?

Question 2

How much energy is in a 63 kHz photon of AM-radiation?
 a. 1.0  1038 J
  b. 6.6  1030 J
  c. 4.2  1029 J
  d. 3.1  1030 J
  e. 13  1029 J


Pswine

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 28, 2018
Answer to Question 1

4.5  104 m

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

The Parallax of a Nearby Object in Space The Parallax of a Nearby Object in Space
Portable pulse oximeter and digital probe Portable pulse oximeter and digital probe
Palpation of ulnar pulse Palpation of ulnar pulse
Popliteal pulse. Popliteal pulse.
Palpating the brachial pulse Palpating the brachial pulse
The Global Positioning System determines the location of an object from its distances to ... The Global Positioning System determines the location of an object from its distances to ...
Video: Interview with an Anorexic Woman (Part 1 of 2)

For a complete list of videos, visit our video library