Please help me get the answers for this

5.When the skater has high PE it the skater is slow, when the skater has low PE it's going fast. When the skater has high KE the skater is going fast, when it has low KE he's going slow

6. If you double the speed of an object, the kinetic energy increases by four times.If you double the mass of an object, you double the kinetic energy. potential energy increases as weight and height increases

7.The skater won't stop untill he runs out of kenetic energy.It depends on the potential energy to detemines how far it will go.What would slow you down is if the track was long,so eventually it would were out the energy

Hope it helps ;3

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.