Answer:
1)the planet would need to have a source of energy that bacterial life can exploit, as well as a standing source of liquid water. At its surface, the temperature of Neptune dips down to 55 Kelvin. That's very cold, and there's no way liquid water could exist.
2)Neptune has the wildest and strangest weather in the entire Solar System. It has huge storms with extremely high winds. Its atmosphere has dark spots which come and go, and bright cirrus-like clouds which change rapidly. Neptune has an average temperature of -353 Fahrenheit (-214 Celsius).
3)To find life on Neptune, the planet would need to have a source of energy that bacterial life can exploit,
Explanation:
(Sorry but we can prosses your answer)
Answer:
nuclear energy.............
Here the maximum angular displacement of the sign board is given 25 degree
mass of the sign is 2.40 kg and its vertical side is 55 cm
Now the moment of inertia of the board about the hinge point is given as
now by energy conservation
so angular speed just before the impact is 2.24 rad/s
Part b)
now a mass of 450 g travels in opposite direction and hit at the lower end
so here we will use angular momentum conservation
Part c)
Again we can use energy conservation