5.A satellite of 2.15 x 104 kg is moving around a planet. What is the acceleration of the satellite, if the planet's radius is 4.28 x 107 m, and the mass is 2.36 * 1029 kg? Estimate G as 6.67 x 10-11 N (m/kg)
a. 4.25 x 103 m/s2
b. 8.59 x 103 m/s2
c. 6.21 x 103 m/s2
d. 4.92 x 106 m/s2
e. 8.12 x 104 m/s2

In the derivation of rrkm theory, a factor of 1/2 is introduced when equalizing the rates of formation and decomposition of activated complex as keal-hr) = ko this is clearly against the assumption of transition state theory that states all the activated complex in the transition state iss going to the product. find the reason why this factor is introduced here.

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?