Multiply 3.036 x 10^2 m by 0.049 x 10^-1 taking into account significant figures

The metric unit of electrical power is the watt volt ampere ohm

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! *

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?