A 200g block is attached to on end of a 40cm long massless rod. The rod rotates about a frictionless pivot at the other end. the block starts from rest and experiences a constant torque of 0.05Nm. how long does it take to complete 10 revolutions?

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.