Speed of Sound Waves and Mediums Medium

Density of the Medium

Speed of Sound

A

1,500 kg/m3

3500 ms

B

997 kg/m3

1500 ms

C

1.331 kg/m3

350 ms

D

583 kg/m3

1800 ms

Which medium is MOST LIKELY a gas and why?
A
Medium C because it has the lowest density causing sound to travel the slowest.
B
Medium A because it has the highest density causing sound to travel the fastest.
C
Medium D because it has the second lowest density and the second highest frequency.
D
Medium B because it has an average density, causing the sound waves to travel at an average speed.

Atomic nuclei of almost all elements consist of

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.