Answer:
Periodic
Explanation:
A periodic (or repetitive) wave has continuously repeating pattern with characteristics such as amplitude, wavelength and frequency. In a periodic wave, a series of pulses that are evenly timed would be created. In other words, the wave pattern in a periodic wave repeats at regular intervals.
An example of a periodic wave is the sound from the strings of a violin.`
Answer:
total amount of fluoride 3.6 *10^6 g
Explanation:
we know that
volume of reservoir
=
= 2.25*10^6 m^3
denso=ity of water = 1000 kg/m3
mass of water = 1000*2.25*10^6
= 2.25*10^9 kg = 2.25*10^12 g
fluoride 1.6 ppm
total amount of fluoride
= 3.6 *10^6 g
Answer: 12.12 m
Explanation:
We have the following data:
is the speed of the water wave
is the frequency of the water wave
Now, the speed of a wave is given by the following equation:
Where is the wavelength.
Isolating :
Finally:
This is the water wave wavelength
Explanation:
the force exerted from by the car on the wall Is contact force
the force exerted by the wall on the car i don't know
Explanation:
scientific laws are totally fixed.
sciebtific theories are not totally accurate.