This graph shows how the potential energy of a reaction system changes over time. Which statement is true for this system?
Potential energy
Reaction progress
O A. The height of the curve at point A represents the activation energy
B. The potential energy of the products is greater than the potential
energy of the reactants.
C. The potential energy of the reactants is greater than the potential
energy of the products
D. The height of the curve at point represents the activation energy

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Afaulty model rocket moves in the xy-plane (the positive y direction is vertically upward). the rocket's acceleration has components ax(t) = ? t2 and ay(t) = ? ? ? t, where ? = 2.50 m/s4 , ? = 9.00 m/s2 , and ? = 1.40 m/s3 . at t = 0 the rocket is at the origin and has velocity ~v0 = v0x ? i + v0y ? j with v0x = 1.00 m/s and v0y = 7.00 m/s. (a) calculate the velocity and position vectors as functions of time. (b) what is the maximum height reached by the rocket? (c) sketch the path of the rocket. (d) what is the horizontal displacement of the rocket when it returns to y = 0?

What is "decrease in velocity" i need offering 60 !