Answer:
LONGITUDINAL WAVE
Explanation:
As we know that there are two type of propagation of wave
1) Transverse wave :
in transverse nature of waves the energy is propagated into the medium in perpendicular to the wave propagation.
So here in transverse waves the medium molecules will start oscillating in perpendicular direction
2) Longitudinal wave
Here in this type of wave the medium molecules will start oscillating in the direction of propagation of waves. So here the medium molecules will oscillate in the direction parallel to the wave propagation
so correct answer is
Longitudinal waves
Answer: 68
We know that
T(F) = T(C) × 9/5 + 32
=20 x 9/5+32
=4 x 9+32
=36+32
=68
Answer:
a) J=
b) F = 
c) The force is 2551.02 times bigger than the weight of the pollen grain.
Explanation:
a) we know that the impulse J is equal to:
J =
where M is the mass,
is the final velocity and
the initial velocity. So, replacing values, we get:
J =
J =
J=
b) We know that the force is equal to:
F = J/t
where J is the impulse and t the time. So, replacing values, we get:
F = 
F = 
c) The weight W of the pollen grain is calculated as:
W = 
W = 
So, if we compare the force and the weight of the pollen grain, we get:

it means that the force is 2551.02 times bigger than the weight of the pollen grain.
Answer:
D is the answer hope you it helps you
The frequency of the second harmonic is 880 Hz (a pitch of A5). The speed of sound through the pipe is 350 m/sec. Find the frequency of the first harmonic and the length of the pipe. The length of an air column is related mathematically to the wavelength of the wave which resonates within it.