So, physical properties are what we can detect with our basic 5 senses or measuring tools, and the things that, when changed, dont actually change the chemical properties (like atoms and molecules). Lets take wood for an example: its brown, its solid, it can be big or small, it has a taste and smell, its boiling, freezing or melting point...
Chemical properties, on the other hand, are the things we can change with, for example, experiments and tools. Does it burn? Can it rust/oxidize? How does it react with other chemicals? Is it radioactive, or toxic? All of these are chemical properties you can probably answer.
D. because the statue has a new chemical called patina. It is no longer copper.
Here it is the use of vector and conservation of momentum !
so,
√(16^2+21^2) ×1000= 3000 v
v =8.8 m/s
so answer is B !
if you have any doubt, you can ask ! just comment !
Answer:129,398,203.7 m
Explanation:
According to Newton's law of Universal Gravitation, the force exerted between two bodies of masses and and separated by a distance is equal to the product of their masses and inversely proportional to the square of the distance:
(1)
Where:
is the gravitational force
is the gravitational constant
is the mass of Uranus
is the mass of Uranu's moon, Mirana
is the distance between Uranus and its moon
Isolating :
(2)
(3)
Finally: