Author Question: Standing waves of frequency 57 Hz are produced on a string that has mass per unit length 0.0160 ... (Read 137 times)

SGallaher96

  • Hero Member
  • *****
  • Posts: 509
Standing waves of frequency 57 Hz are produced on a string that has mass per unit length 0.0160 kg/m. With what tension must the string be stretched between two supports if adjacent nodes in the standing wave are to be 0.71 meters apart?
 
  What will be an ideal response?

Question 2

The intensity of sunlight falling on the earth is about 1.4 kW/m2 (before any gets absorbed by our atmosphere). At what rate does the sun emit light energy? (The earth-sun distance = 1.5  108 km and the earth's radius = 6.4  103 km.)
 
  A) 4.0  1026 W
  B) 3.2  1022 W
  C) 7.2  1014 W
  D) 7.6  108 W

Question 3

Find the speed of an ocean wave whose vertical displacement y as a function of time t is given by y(x,t) = 3.7 cos(2.2x - 5.6t), where all quantities are in SI units.
 
  A) 2.5 m/s
  B) 1.9 m/s
  C) 3.5 m/s
  D) 4.5 m/s



akemokai

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

100 N

Answer to Question 2

Please could you help me with another one. Thank you

Answer to Question 3

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

For a complete list of videos, visit our video library