Question

The distance between the first and the third crest(peak) of a water wave is 10.9 m. A crest appears every 0.435 minute, at a point along the wave. What is the speed of the water waves?

Answer #1

1)Calculate the speed of the waves having a
crest-to-crest distance of 150 cm and the time taken to complete
one cycle is 5 ms.
2)Given the following sound wave equation:
s(x,t)= 150 sin(50x - 140t) dB
a) The amplitude of the wave.
b) the wave frequency and the periodic time
c) the wavelength
d) The time taken for the wave to reach the
first crest.

1. A wave train is traveling along a string. Seven waves pass by
a point in 3.75 s. The
distance from the top of a crest to the bottom of an adjacent
trough is 0.462 cm. Find:
a) the speed of the waves.
b) the tension in the string if it has a length of 1.68 m and a
mass of 3.86 g.
2. Suppose that the string in problem #1 is attached to a second
string whose linear
density...

The peak of a wave with a wavelength
of 624 m, a frequency of 0.05 s-1, and traveling in deep
water, passes a fixed point P. What is the displacement at P (in
terms of the amplitude, (include a drawing to show the
position of the wave in each case):
(a) 30 seconds after the peak has
passed?
(b) 80 seconds after the peak has
passed?
(c) 85 seconds after the peak has
passed?

The wave front of a water wave strikes a flat surface at an
angle of 26o to the normal of a flat surface and is
reflected. At what angle to the normal is it reflected?
A standing wave is found to have a total of five nodes. If the
total length between the boundaries of the wave is 5.68 m, what is
the wavelength?
Two waves are identical. At a point in time the two waves
overlap so...

physics 322: optics
chapter 2 : wave motion
1 -
What is the phase angle of a traveling wave? What is the phase
difference between two waves?
Give an example of two waves with ?/2 phase difference.
Explain and show your detailed work.
_______
2-
You count 20 complete waves pass a certain point in 140 ? and you
measure 9.50 ? from a
crest to the next trough on the passing waves.
a) Calculate the period of these waves....

1) Selena measures the total distance between the nodes on
either end of a standing wave pattern to be 0.75 m, and she records
that there were three antinodes between the endpoints. When she
calculates half of the wavelength of the pattern, using these
measurements, what is the result? Express your answer in
meters.
4) Jerome has added mass to the holder and created the standing
wave pattern. He observes that the string appears to have nodes
where it meets...

a sound wave with a wavelength of 0.657 m., in air,
enters water. what is the sound waves wavelenght in the water?
answer 2.76

a) What are nodes and antinodes for a standing wave?
b) How is the distance between nodes related to the wavelength
of a standing wave?
c) How do standing waves look for a string?
d) A pipe that is open at both ends?
e) A pipe that is closed at one end and open at the other?
please type your responses.

If the inter-quartile range is the distance between the first
and third quartiles, then the inter-decile range is the distance
between the first and ninth decile. (Deciles divide a distribution
into ten equal parts.) If IQ is normally distributed with a mean of
100 and a standard deviation of 16, what is the inter-decile range
of IQ?

If the inter-quartile range is the distance between the first
and third quartiles, then the inter-decile range is the distance
between the first and ninth decile. (Deciles divide a distribution
into ten equal parts.) If IQ is normally distributed with a mean of
100 and a standard deviation of 16, what is the inter-decile range
of IQ?

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