4 A trolley of mass 1 kg rolls down an inclined plane. The trolley on the inclined plane has an initial velocity of 0,2 m. st. When it reaches the bottom its velocity is 2,2 m. s! 4.1 Calculate h, the change in its vertical height. ​

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

What was the first instrument to ever record an earthquake?

The ph is the a.independent variable b.the dependent variable c.control group