Imagine you are shaking the end of a rope to create a series of waves. What will you observe if you begin shaking the rope more quickly?

Most waves are caused by a. velocity. b. amplitude. c. a vibration. d. earthquakes.

Most waves are caused by a. velocity. b. amplitude. c. a vibration. d. earthquakes.

In a certain region of space, the electric potential depends on position in the following way, where $V_{0}$ and a are constants: $V=V_{0}+ a\left(x^{2}+y^{2}+z^{2}\right) .$ What is the charge density in this region? In a different region of space, the electric potential depends on position in the following way, where $V_{0}$ and b are constants: $V=V_{0}+b(3 x+4 y-2 z) .$ What is the charge density in this region?

At the beginning of the year, Mitchum Enterprises allows for estimated uncollectible accounts of $15,000. By the end of the year, actual bad debts total$17,000. Record the write-off to uncollectible accounts. Following the write-off, what is the balance of Allowance for Uncollectible Accounts?

A sonar signal of frequency 1.00 x 10⁶ Hz has a wavelength of 1.50 mm in water. What is the speed of the signal in water?

Answer the following questions in complete sentences.

1. ¿Conoces tú Los Ángeles?

2. ¿Tú sabes patinar?

3. ¿Sabes quiénes son los campeones de béisbol?

4. ¿Tu amigo(a) quiere conocer a los campeones de fútbol americano?

Draw a picture of a standing wave, and label a node and an antinode.

Half the vertical distance between the crest and the trough of a wave is called the a. frequency. b. crest. c. wavelength. d. amplitude.

The combining of waves as they meet is known as a. a crest. c. interference. b. noise. d. the Doppler effect.

You are creating trans verse waves in a rope by shaking your hand from side to side. Without changing the distance that your hand moves, you begin to shake it faster and faster. What happens to the amplitude, wavelength, frequency, period, and velocity of the wave?

Two 1.50-V batteries—with their positive terminals in the same direction—are inserted in series into the barrel of a flashlight. One battery has an internal resistance of 0.255 $\Omega$, the other an internal resistance of 0.153 $\Omega$. When the switch is closed, a current of 0.600 A passes through the lamp. What fraction of the power dissipated is dissipated in the batteries?

Describe how the frequency and period of a wave are related.

A cylindrical can is to hold $4 \pi$ cubic inches of frozen orange juice. The cost per square inch of constructing the metal top and bottom is twice the cost per square inch of constructing the cardboard side. What are the dimensions of the least expensive can?