Answer:
he word that musicians use for frequency is pitch. The shorter the wavelength, the higher the frequency, and the higher the pitch, of the sound. In other words, short waves sound high; long waves sound low. ... In other words, it sounds higher
Explanation:
Answer:
The wavelength is 0.14 m
Explanation:
Given that,
Frequency = 2450 Hz
Speed of sound = 343 m/s
We need to calculate the wavelength
Using formula of wavelength

Where, v = speed of sound
f = frequency
Put the value into the formula



Hence, The wavelength is 0.14 m
Answer:
v = 3 m/s
Explanation:
P is the momentum
m is the mass
v is the velocity
P = m•v
300 = 100•v Divide both sides per 100
300/100 = v
v = 3 m/s
Answer:
Wavelength, 
Explanation:
It is given that,
Velocity of an electron, 
Mass of an electron, 
We need to find the wavelength of an electron. It can be calculated using the De- Broglie wavelength as :



So, the wavelength of an electron is
. Hence, this is the required solution.
Similar elements with similar properties were in the same groups and periods for instance lithium(Li) and sodium(Na) are alkaline metals and so belong to the same group (that is group 1).Also Hydrogen(H) and Helium(He) both have only one shell or energy level and so belong to the same period.