We have to speed up the watch so we need to decrease time period of pendulum. So we hv to reduce the length.
Summer because when the northern hemisphere is facing away from the sun we are in winter, and the southern hemisphere is opposite so they are in winter.
Answer:
Following are the solution to the given question:
Explanation:
For crashing speed, we can use energy conservation:
kinetic energy
potential energy
moon mass
Radius
Calculating the mass drop for the leave:
Solve the value for
The approach is correct but misrepresented in replacing 180 km instead of 110 km.