To solve this problem it is necessary to apply the concepts related to the Kinetic Energy and the Energy Produced by the heat loss. In mathematical terms kinetic energy can be described as:

Where,
m = Mass
v = Velocity
Replacing we have that the Total Kinetic Energy is



On the other hand the required Energy to heat up t melting point is


Where,
m = Mass
Specific Heat
Change at temperature
Latent heat of fussion
Heat required to heat up to melting point,




The energy required to melt is larger than the kinetic energy. Therefore the heat of fusion of lead would be 327 ° C: The melting point of lead.
matter is a solid liquid or gas , a atom is a basic unit of a chemical element and a molecule is a group of atoms together
B. kinetic energy increases and potential energy decreases
Answer: 482.8032 km per hr
Explanation: 300 * 1.609344 =
Answer:
The escape speed for the craft is 1.49 m/s.
Explanation:
In this case we need to find the escape speed for a craft launched from a space elevator at a height of 56,000 km. The escape velocity is given by :

Here,
G is universal gravitational constant
M is mass of earth
d = r + h, r is radius of Earth

So, the escape speed for the craft is 1.49 m/s.