The diagram below shows the heating of an unknown substance (it is not water). Its melting point is? The diagram below shows the
heating of an unknown substance. (It is NOT water). Its melting point is:
a. between 35⁰C and 70⁰C
b. 70⁰C
c. between 70⁰C and 140⁰C
d. 140⁰C
a. between 35⁰C and 70⁰C
b. 70⁰C
c. between 70⁰C and 140⁰C
d. 140⁰C
1 answer:
You might be interested in
The gravitational force between two objects is given by:
where
G is the gravitational constant
m1 and m2 are the masses of the two objects
r is their separation
In this problem, the first object has a mass of
, while the second "object" is the Earth, with mass 
. The distance of the object from the Earth's center is 
; if we substitute these numbers into the equation, we find the force of gravity exerted by the Earth on the mass of 0.60 kg:
where
G is the gravitational constant
m1 and m2 are the masses of the two objects
r is their separation
In this problem, the first object has a mass of