That’s the SI unit of energy or work
Answer:
Elastic potential energy is energy stored as a result of applying a force to deform an elastic object. The energy is stored until the force is removed and the object springs back to its original shape, doing work in the process. The deformation could involve compressing, stretching, or twisting the object.
Answer: 2 : 1
Explanation:
Cation :
Ca - calcium = atomic number = 20
Electron dot configuration : 2, 8, 8, 2
Ca losses 2 electrons in its outermost shell and thus has a charge of 2+ in other to attain a stable octet state.
Anion:
F - has 7 valence electrons and thus needs 1 electron to achieve a stable octet state, hence it accepts one electron has has a charge of (-1)
Therefore,
Ratio of cation (+) to negative (-) = 2 :1
<h2>
ANSWER:</h2>
The Freedman's Bureau wanted to help newly freed slaves participate in American society.
<h2>
EXPLANATION:</h2>
The Freedmen's Bureau, formally known as the Bureau of Refugees, Freedmen and Abandoned Lands, was set up in 1865 by Congress to help a large number of previous dark slaves and poor whites in the South in the outcome of the Civil War. The Freedmen's Bureau given nourishment, lodging, and therapeutic guide built up schools and offered lawful help. It additionally endeavored to settle previous slaves ashore appropriated or surrendered amid the war. Be that as it may, the department was kept from completely doing its projects because of a lack of assets and faculty, alongside the legislative issues of race and Reconstruction.