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

Author Question: A radar receiver indicates that a pulse return as an echo in 20 s after it was sent. How far away is ... (Read 60 times)

sdfghj

  • Hero Member
  • *****
  • Posts: 552
on: Jul 29, 2018
A radar receiver indicates that a pulse return as an echo in 20 s after it was sent. How far away is the reflecting object? (c = 3.0  108 m/s)
 
  A) 1.5 km
  B) 3.0 km
  C) 6.0 km
  D) 9.0 km

Question 2

Consider two pipes of the same length: one pipe is open at both ends and the other pipe is closed on one end but open at the other end.
 
  If the fundamental frequency of the totally open pipe is 300 Hz, what is the fundamental frequency of the other pipe? A) 150 Hz
  B) 300 Hz
  C) 450 Hz
  D) 600 Hz
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Gabe

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


sdfghj

  • Member
  • Posts: 552
Reply 2 on: Jul 29, 2018
Gracias!

atrochim

  • Member
  • Posts: 331
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Peripheral Pulse Sites Peripheral Pulse Sites
Palpation of the Radial Pulse Palpation of the Radial Pulse
Primary pulse points of the body. Primary pulse points of the body.
Pulse sites Pulse sites
The primary pulse points of the body. The primary pulse points of the body.
Brachial pulse. Brachial pulse.
Video: Congenital Heart Defects Animation

For a complete list of videos, visit our video library