Answer:
False
Explanation:
No. The buoyant force on an object is the portion of its weight that appears to vanish
when the object is in any fluid (could be either a liquid or a gas).
If the object happens to float in a particular fluid, then the buoyant force at that moment
is equal to the object's weight.
Notice that the buoyant force on an object will be different in different fluids.
"Reflection" is the change direction of waves when blocked by obstacle
Answer:
Atom - the basic particle of matter
Density - calculated from measurements of mass and volume
Motion - calculated from measurements of distance and time
Energy - can change form and move matter
Matter - the scientific word for <em>stuff</em>
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Answer:
Radial acceleration of moon is 
Explanation:
Given :
Time period 
sec
Distance from center of moon to planet 
m
From the equation of radial acceleration,
Where 
So 
Now moon's radial acceleration,
