An object is dropped from a building and strikes the ground with a speed of 52 m/s. How tall is the building?

You carry a 7.0-kg bag of groceries 1.2 m above the ground at constant speed across a 2.7m room. how much work do you do on the bag in the process? (a) 157j (b) 0.00j (c) 185j (d) 82j

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages