1. Molly carries a 30 kg bag of feed up a ramp which has a base of 4 m and a height of 2 meters. How much work was done to the bag?
a. 162 Nm
b. 588 Nm
c. 1315 Nm
d. 1583 Nm

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Phase changes are chemical changes. true or false

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?