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

Author Question: If a wave has a wavelength of 25.4 cm and a frequency of 1.63 kHz, its speed is closest to A) ... (Read 165 times)

jCorn1234

  • Hero Member
  • *****
  • Posts: 545
on: Jul 29, 2018
If a wave has a wavelength of 25.4 cm and a frequency of 1.63 kHz, its speed is closest to
 
  A) 0.414 m/s
  B) 41.4 m/s
  C) 414 m/s
  D) 41,400 m/s
  E) 15.6 m/s

Question 2

Air is flowing through a rocket nozzle. Inside the rocket the air has a density of 5.25 kg/m3 and a speed of 1.20 m/s.
 
  The interior diameter of the rocket is 15.0 cm. At the nozzle exit, the diameter is 2.50 cm and the density is 1.29 kg/m3. What is the speed of the air when it leaves the nozzle?
  A) 176 m/s B) 123 m/s C) 88.0 m/s D) 45.7 m/s E) 29.3 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

diana chang

  • Sr. Member
  • ****
  • Posts: 288
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

A


jCorn1234

  • Hero Member
  • *****
  • Posts: 545
Reply #2 on: Jul 29, 2018
TY


diana chang

  • Sr. Member
  • ****
  • Posts: 288
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Frequency coding in the nervous system: Threshold stimulus. Frequency coding in the nervous system: Threshold stimulus.
Record the AC frequency as shown on the meter and subtract 50 from the reading (e.g., 60.50 -50.00 = ... Record the AC frequency as shown on the meter and subtract 50 from the reading (e.g., 60.50 -50.00 = ...
Adding additional amounts of ethyl alcohol (ethanol) increases the frequency reading. Adding additional amounts of ethyl alcohol (ethanol) increases the frequency reading.
A secondary waveform of a Ford 4.6 liter V-8, showing three sparks occurring at idle speed. A secondary waveform of a Ford 4.6 liter V-8, showing three sparks occurring at idle speed.
Find the speed after 40.0 min if the initial speed is 3250 rev/min Find the speed after 40.0 min if the initial speed is 3250 rev/min
Classes and Frequency of Breast Cancer Susceptibility Genes Classes and Frequency of Breast Cancer Susceptibility Genes
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library