<span>The particles through which compressional waves travel move in the same direction as the wave. This may be observed by fixing one end of a large spring and then compressing and extending the other end. The wave travels from one end to the other and the spring's parts move in the same direction.</span>
It shortens so that the tips reach faster
<span>Pollination is when the male gamete or pollen reaches the female flower through different modes...wind,air,animals,...
Fertilization </span><span>is when the male gamete "join" with the female gamete to become an embryo.
I hope I helped.:) </span>
Hey there!
Answer: Glaciers
Water near the poles would most likely be stored as glaciers. Glaciers are slow moving rivers that are a buildup of ice and snow.
Thank you!
Answer:
a) 
b) 
c) 
d) 
Explanation:
Given:
- velocity of the sound from the source,
- original frequency of sound from the source,
- speed of the source,
(a)
We know time period is inverse of frequency:
Mathematically:
(b)
Distance travelled by the motorcycle during one period of sound oscillation:
(c)
The distance travelled by the sound during the period of one oscillation is its wavelength.
(d)
observer frequency with respect to a stationary observer:
<u>According to the Doppler's effect:</u>
...........................(1)
where:
are the observed frequency and the velocity of observer respectively.
Here, observer is stationary.
Now, putting values in eq. (1)
