Power = (work) / (time)
= (120 J) / (2 sec)
= 60 watts .
52.1-4.184=47.916 You then either add or subtract this from 68.6 the first temperature of the metal. This will give you your total.
Answer:
29.2 m/s
Explanation:
The escape velocity of an object from the surface of a planet is given by:
where
G is the gravitational constant
M is the mass of the planet
r is the radius of the planet
In this problem, we have
is the mass of the Death Star
is its radius
Substituting into the equation, we find