What is the power involved in lifting a 1.0-kg object 1.0 m in 1.0 s? ?

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.