2. You are on in-line skates at the top of a small hill. Your potential energy is equal to
1,000. J. The last time you checked, your
mass was 60.0 kg.
a. What is your weight in newtons?
b. What is the height of the hill?
c. If you start rolling down this hill, your
potential energy will be converted to
kinetic energy. At the bottom of the hill,
your kinetic energy will be equal to your
potential energy at the top. Calculate
your speed at the bottom of the hill,
ka hallint

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.

This  kingdom  is  made  up of species that  do  not really easily fit into other kingdoms such as the plant, animal,and  fungi  kingdom. some protists, such as the paramecium  and  amoeba, feed  on  other  organisms  while others such as algae are able to  make their own food  through the process of photosynthesis.