To find the speed you multiply the wavelength and the frequency together.
wavelength = 8mm =
m = 0.008 m
frequency = 14 Hz
speed = 0.008m * 14 Hz = 0.112 m/s
Answer:
C.
Explanation:
If we look at the equation x(final) = v(initial)*t + x(initial), where v(initial in the x dir.) in the same both times, and x(initial) is 0, we can conclude that t is responsible for the change in x(final).
Answer:
When you in a airplane you are in high altitude and thats where air density drops. Thats where ear pops come from.
Explanation:
Explanation:
The electric field at a distance r from the charged particle is given by :
k is electrostatic constant
if r = 2 m, electric field is given by :
If r = 1 m, electric field is given by :
Dividing equation (1) and (2) we get :
So, at a point 1 m from the particle, the electric field is 4 times of the electric field at a point 2 m.
1. The _________ of a wave is the density of the medium’s particles at the compression of the wave.
2. In which part of the wave are the particles of the medium closer together?
B)compressions
3. In sound waves, the distance between compressions is called the wavelength.
What is the distance between rarefactions called?
D)wavelength
4) A student takes notes in class.
Sound Waves
I. Created by a vibration
A. Vibration: something that causes air molecules to move
back and forth quickly and steadily
II. Move through a medium
A. Solid
B. Liquid
C. Gas
Which line of her notes contains an error?
C)II B
5)Which of these would most likely cause a sound wave?
C)a spoon hitting the side of a bowl while mixing
6)Allison wants to calculate the speed of a sound wave.
Which formula should she use?
D)distance traveled / time
7)When sound is created, it travels to the ear through a
B)medium.
8) Why do waves move faster at higher temperatures and in a solid phase?
D)There is more energy and the particles are closer together.
