At 760. k, the rate constant of the reaction c4h8(g)→2c2h4(g) is 8.50×10−3 s−1. at 870. k, the rate constant is 0.0335 s−1. according to the arrhenius equation, what is the activation energy for the reaction?

Most of the volume of an atom is occupied by the

Ajet plane flying 600 m/s experience an acceleration of 4.0 g when pulling out of a circular dive. what is the radius of curvature part of the path in which the plane is flying? a) 7100 m b) 650 m c) 9200 m d) 1200 m

12. ritu obtained a distinct image of a distant tree on the screen with the of a concave mirror.to find the focal length of the mirror she has to measure the distance between: (a) mirror and the tree. (b) screen and the tree.(c) mirror and the screen. (d) mirror and tree as well as between screen and the tree.