I am pretty sure that the only statement which is true for particles of the medium of an earthquake P-wave is being shown in the option : b)vibrate parallel to the wave, forming compressions and rarefactions. As you know, it can be formed in two ways : from alternating compressions and rarefactions or primary wave. I bet you will agree with me.
Answer:
The answer to your question is t = 8.6 s
Explanation:
Data
Initial velocity = vo = 0 m/s
acceleration = a = 7 m/s²
time = t = ?
final velocity = vf = 60 m/s
Formula
vf = vo + at
-Solve for t
at = vf - vo
t = (vf - vo) / a
-Substitution
t = (60 - 0) / 7
-Simplification
t = 60 / 7
-Result
t = 8.6 s
Answer:
Electronmagnetic waves: yes
Mechanical waves: no
Explanation:
Electromagnetic waves consist of electric fields and magnetic fields that oscillate perpendicularly to each other, and also in a plane perpendicular to the direction of propagation of the wave (therefore they are called "transverse waves".
As all waves, electromagnetic waves transport energy (but not matter). In particular, the type of energy transferred by electromagnetic waves is in the form of radiation, also called light energy.
Conversely, mechanical waves consist of oscillations of the particles in a medium. Mechanical waves also carries energy (but not matter), but not in the form of radiation (light energy): in fact, the energy is carried as vibrations of the particles in the medium, so it is a different type of energy.
It's shows static electricity because of the hair
Given, a = -3.2m/s²
v = 5m/s
t = 10s
u = ?
Using kinematic equation,
v = u + at
5 = u -3.2* 10
5 = u - 32
u = 32 + 5
u = 37 m/s