Answer:
The remainder of the hydrogen atom's mass comes from the positively charged proton. The atomic number of an element is the number of protons in its nucleus. Neutrons are neutral particles having a mass slightly greater than that of the proton. Different isotopes of the same element contain the same number of protons but differing numbers of neutrons.
Explanation:
Answer:
In the 1980s, astronomers turned to multiverse theory to explain the “luckily small” amount of dark energy in our universe. According to cosmologist's theories, this small amount of dark energy appeared to enable our universe to host life, while most universes in the multiverse couldn't.
Explanation:
For the sound wave passing through regions of the ocean with varying density, longer wavelengths correspond to greater density of the water.
<h3>What is effect of density of a medium on wavelength of a wave?</h3>
The density of a medium is directly proportional to the wavelength of a wave.
The higher the density of the medium, the longer the wavelength of a wave.
Therefore, for a sound wave passing through regions of the ocean with varying density, longer wavelengths correspond to greater density of the water.
Learn more about density and wavelength at: brainly.com/question/9486264
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A) 222 N/m
Explanation:
Hook's law gives us the relationship between force (F), displacement with respect to the original length (x) and spring's constant (k):
![F=kx](https://tex.z-dn.net/?f=F%3Dkx)
In this part of the problem, we have:
F = 120 N - 100 N = 20 N is the new force applied
x = 9.0 cm = 0.09 m is the displacement relative to the initial stretched position
Solving the equation for k, we find the spring constant
![k=\frac{F}{x}=\frac{20 N}{0.09 m}=222 N/m](https://tex.z-dn.net/?f=k%3D%5Cfrac%7BF%7D%7Bx%7D%3D%5Cfrac%7B20%20N%7D%7B0.09%20m%7D%3D222%20N%2Fm)
B) 45 cm
We can use Hook's law also for this part of the exercise:
![F=kx](https://tex.z-dn.net/?f=F%3Dkx)
where this time we have
F = 100 N (the original pull applied)
k = 222 N/m
Solving the equation for x, we find the original displacement:
![x=\frac{F}{k}=\frac{100 N}{222 N/m}=0.45 m=45 cm](https://tex.z-dn.net/?f=x%3D%5Cfrac%7BF%7D%7Bk%7D%3D%5Cfrac%7B100%20N%7D%7B222%20N%2Fm%7D%3D0.45%20m%3D45%20cm)
Explanation:
It is a good idea to start with room temperature water in the calorimeter because the room temperature water helps to determine the heating up/cooling down because of the environment as the experiment takes place. Because the calorimeter heat is the same as the heat of the water.