Answer:
833kg/m³
Explanation:
We have volume as Vm³
Density of this object = dKg/m³
Water density = 1000kg/m³
g = 10m/s²
We calculate FB which is the the buoyant force on object. Calculated as volume of object multiplied by water density
Fb = 1000Vg upwards
W = Vdg
Acceleration = net upwards/m
M = mass
2 = (1000g-gd)/d
2d = 10000 - 10d
2d + 10d = 10000
12d = 10000
d = 833.33kg/m³
Approximately 833kg/m³
The average density of the object is therefore 833kg/m³
The chemical and physical actions of groundwater form Karst topography. It is <span>any region where the terrain has been dissolved by the physical and chemical weathering of the bedrock.
There is no reason why glaciers, volcanoes, and mountains should be formed as a result of these actions. </span>
Answer:
Explanation:
1. He had the opportunity to have a chance of doing experimental research where he began to develop a theory on electromagnetism. He was then recognized in 1884 and appointed to chair of physics at Cavendish Laboratory. In 1914 there was a new type of physics that lead to more questions than there were answers for and that is when Thomson began associating himself with this new type of physics.
2. Thomson began experimenting with the cathode ray tubes that showed him that all atoms contain small negatively charged particles/electrons. His proposition to the atom was shown with is plum pudding model, which showed negatively charged electrons that were embedded in a positive charge. His discovery came before the discovery of the atomic nucleus that would be included in the electron in the atomic model.
3.His contributions to the atomic model include that all matter is made of atoms, atoms are invisible and indestructible, all atoms in a certain element are identical, two or more atoms that are combined form a compound, and a chemical reaction is the rearrangement of the atoms. His ideas of the atomic model that do not exist in the modern day atomic model include the fact that the distribution of the negative and positive particles was not uniform.
Websites:
https://socratic.org/questions/why-was-j-j-thomson-wrong
https://www.khanacademy.org/science/ap-chemistry/electronic-structure-of-atoms-ap/history-of-atomic-structure-ap/a/discovery-of-the-electron-and-nucleus#:~:text=Summary-,J.J.,positively%2Dcharged%20%22soup.%22
<h2>
Average acceleration is 6.49 m/s²
</h2>
Explanation:
We have equation of motion v = u + at
Initial velocity, u = 0 m/s
Final velocity, v = 22.2 m/s
Time, t = 3.42 s
Substituting
v = u + at
22.2 = 0 + a x 3.42
a = 6.49 m/s²
Acceleration is 6.49 m/s²
Average acceleration is 6.49 m/s²