Fast
a 25-kg child sits at the top of a meter slide. after sliding down, the child is traveling at 5 m/s. how much pe does he start with/ how much ke does he end with? how much energy is lost to friction?
( its science i got confused, but if anyone knows how to do this plzzz ! )

26) -2(7x) = (-2 • 7) x a. associative property of addition b. associative property of multiplication c. commutative property of multiplication d. commutative property of addition

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

Find the percent error of the measurement 4 cm