1) The Universal gravitaional law, stated by Sir. Isaac Newton, states that the force of gravitational attraction between two objects is directly proportional to the product of their masses and inverse to the square of the distance that separates their centers.
2) Mathematically, it was expressed in this form:
F = G × m₁ × m₂ / d².
where G is the proportinality constant, m₁ and m₂ and the masses of the objects, and d is the distance that separates the centers of the two objects.
3) Then, the answer is that the greatest for of gravitaional attraction is:
- that of the two objects for which the product of the masses is the greates (assumin same distance between them), or
- that of the two objects that are closer (assuming the product of the masses is the same).
If you’ve ever smoked a joint or eaten a pot-laced brownie, you’re hardly alone: More than 1 in 3 people in America have tried marijuanaat one point in their lives.
Though occasional use isn’t usually harmful, pot can affect your body and mind any time it gets into your system. Here’s what you need to know.
Physical EffectsMarijuana comes from the hemp plant Cannabis sativa. It has an active ingredient called THC that makes you feel high. THC and other compounds in marijuana can also affect the way your body works.
Nonmetals, such as those in groups 14 and 17, generally gain electrons becoming more stable anions. Metals, like those in group 1, typically lose electrons and form stable cations. An example is in ionic compounds where metal atoms like sodium lose electrons and nonmetal atoms like chlorine gain electrons.
In the context of elements and their atoms, nonmetals, which include elements from group 14 and group 17, tend to gain electrons. This gain in electrons forms negative ions, or anions, which fills their outermost electron shell, making them energetically more stable.
On the other hand, metals like those from group 1, tend to lose electrons. This event makes them energetically more stable by forming positive ions, or cations, and allowing them to achieve an electron configuration similar to noble gases.
For instance, to fill their outermost shells, elements donate or accept electrons. In ionic compound formation, metals like sodium (Na) lose electrons while nonmetals like chlorine (Cl) gain these electrons, achieving a stable configuration.
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Dipole-dipole type of intermolecularforce present between MgNO3 and H2O.
The positive end of one polar molecule and the negative end of another polar molecule are attracted to one another by dipole-dipole forces. Strengths of dipole-dipole forces per mole range from 5 kJ to 20 kJ.
Between molecules with permanent dipoles, there are dipole-dipole forces. These forces become stronger with increasing polarity for molecules with identical size and mass. Moreover, nonpolar molecules can develop dipoles as a result of polar molecules, producing dipole-induced dipole forces.
Hydrogen bonds form between nearby hydrogen and oxygen atoms of adjacent water molecules in the case of water. A bond called a hydrogen bond is produced by the attraction between individual water molecules.
Thus, the type of intermolecularforce between MgNO3 and H2O is Dipole-dipole.
To learn more about the dipole-dipole force, follow the link:
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A. The ocean temperatures north of Australia are lower than the ocean temperatures south of Australia
B. The ocean temperatures north of Australia are higher than the ocean temperatures south of Australia
C. The ocean temperatures north of Australia are the same as the ocean temperatures south of Australia.
D. The ocean temperatures north of Australia are sometimes higher and sometimes lower than the ocean temperatures south of Australia.
Answer:
B. The ocean temperatures north of Australia are higher than the ocean temperatures south of Australia
Explanation: