Two blocks with masses m1 = 4.0 kg and m2 = 5.0 kg, are connected by a light rope and slide on a friction wedge as shown in the Figure. Given it starts from rest, what is the speed of m2 after it has slid down 0.40 m along the incline? (Please include explanation, really want to understand the problem)

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

How many atoms of nitrogen are in the chemical formula ni(w on