3 m K
1 ml
L
A 20 kg object is moving on a smooth path, as shown
in the figure. Find its gravitational potential energies at
points L and M with reference to point K (Take g=10
m/s2)

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

If a balloon is taken outside on a very cold day, what will occur?

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.