An elevator has the mass of 3 tons of power needed to raise the elevator 50m in 15 s?PLEASE HELP PLEASE IM SCARED

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

Which one of the following research methods can show cause and effect

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass