The frequency and wavelength of the sound wave with the given time period and speed are 500Hz and 0.688m respectively.
Period is simply the time taken for a complete cycle of vibration to pass a given point. Frequency is expressed as;
f = 1/T
Where f is frequency and T is period of time.
Given that;
f = 1/0.002s
f = 500s⁻¹
f = 500Hz
Wavelength is simply the distance over which the shapes of waves are repeated. It is the spatial period of a periodic wave.
From the wavelength, frequency and speed relation,
λ = s ÷ f
Where λ is wavelength, s is speed and f is frequency.
Given that;
λ = s ÷ f
λ = 344m/s ÷ 500s⁻¹
λ = 0.688m
Therefore, the frequency and wavelength of the sound wave with the given time period and speed are 500Hz and 0.688m respectively.
Learn more about Speed, Frequency and Wavelength here: brainly.com/question/27120701
#SPJ2
Answer:
Given
Time (T) = 0.002 sec
Velocity(V) = 344 m/s
Frequency (f) = ?
Wavelength (w) = ?
Explanation:
We know that
Frequency (f) = 1/ t
= 1/ 0.002
= 500 hertz
Now
wavelength = V/f
= 344/500
= 0.688 m
B. -2
C. +2
D. +1
When a potassium atom loses one electron, it forms a potassium ion. Since electrons carry a negative charge, losing one electron results in an overall positive charge for the ion. Therefore the correct answer is (D).
A potassium atom normally has 19 protons and 19 electrons. The number of protons and electrons is equal, so the atom is electrically neutral overall.
However, when a potassium atom loses one electron, it means that it now has 19 protons and only 18 electrons. Since protons are positively charged and electrons are negatively charged, losing one negatively charged electron leaves the atom with a net positive charge.
Since there is one more positive charge than a negative charge, the potassium ion has a positive charge of +1. This means the potassium ion has one more positive charge than it has negative charges, making it a cation with a +1 electrical charge.
In summary, when a potassium atom loses one electron, it becomes a potassium ion with a positive charge of +1. Therefore the correct answer is (D).
To know more about the potassium atom:
#SPJ6
What's the formula for this problem?
For this problem, we use the following expression:
Speed = distance / time
Distance = Speed * timeSince the problem tells us the speed of the plates, we know that
Speed_plates = 6.0 cm/year
Which is equal to
Speed_plates = 6.0 cm/365 days = 6.0 cm/(365*24 hours)
Speed_plates = 6.0 cm/(365*24*60 minutes)
Speed_plates = 6.0 cm/(365*24*60*60 seconds)
Speed_plates = 190.258 E -9 cm / s
We multiply by 25, to get the distance traveled after 25 seconds
Distance traveled = 4.756 E-6 cm
continental tropical
B.
maritime polar
C.
maritime tropical
D.
continental polar