42,256 = 2,000
42,256 = 200
together they'd be 2,200 (if that's what you needed as well)
I think it is because it is directly about the north or south pole (I forget) so while all the other stars seem to rotate around because the Earth is rotating but the North Star is directly in the center. Don't take my word though.
Explanation:
Using the Newton's laws, we can find the force F required for lifting the book having mass (m) and acceleration due to gravity (g) that is ;
and, the change in the position of the book that is Δx (Height)
→ Δx = Final position - Initial position
which is only the height, then the amount of work done will be calculated by :
W= mgh
m = Mass of the Body
g = Acceleration due to Gravity
h = Height of Body being displaced
The wave speed of a wave consist of frequency of 100 Hz and a wavelength of 0.30 m is 30 m/s.
Wave speed is referred to the distance a wave travels in a particular amount of time, such as the number of meters it travels per second.
Speed = wavelength (λ) × frequency (ν).
Given wavelength = 0.30 m and frequency= 100 Hz
Wave speed = 0.30 × 100 = 30 m/s
So, the wave speed of the wave is 30 m/s.
Learn more about wavelength, here:
Answer: The wave speed of the wave is 30 m/s
Explanation:
Wave speed is defined as the product of its wavelength and frequency.
Mathematically,
where,
= wavelength of the wave = 0.30 m
= frequency of the wave = 100 Hz =
Putting values in above equation, we get:
Hence, the wave speed of the wave is 30 m/s
Answer:
Explanation:
Hey,
so here the student is saying that the given mass is of one atom. But when we usually talk about amu it is the unified atomic mass so mass of all the atoms present.
So that's why he is wrong.
Also the definitions states,
The atomic mass of an element is the average mass of the atoms of an element measured in atomic mass unit (amu, also known as daltons, D). The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of each isotope is multiplied by the abundance of that particular isotope.
Answer:
See below.
Explanation:
121.76 amu is the Relative Atomic Mass of Antimony (the average mass of the different isotopes). . The element exists as a mixture of isotopes , the main one being SB121 which has a mass of 121.
The three primary sources of carbon dioxide (CO2) in the atmosphere are the respiration of organisms, the burning of fossil fuels, and deforestation or land use changes.
Carbon dioxide (CO2) is a type of gas that naturally exists in the atmosphere. It is primarily released from three key sources, which include:
The three primary sources of carbon dioxide (CO2) in the atmosphere are the respiration of organisms, the burning of fossil fuels, and deforestation or land use changes.
The three primary sources of carbon dioxide (CO2) in the atmosphere are the respiration of organisms, the burning of fossil fuels, and deforestation or land use changes.
Yet due to human activities like industrialization and deforestation, the amounts of CO2 in the atmosphere have been increasing at an unprecedented rate, leading to global climate change.
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