Explain the subject-verb agreement rule that applies to subjects joined by and. demonstrate your understanding of the rule by composing a sentence using the compound subject clowning and krumping.

Apackage of supplies is dropped from a plane, and one second later a second package is dropped. neglecting air resistance, the relative velocity of the 1st package viewed from the second will 56) a) increase. b) be constant. c) be zero. d) depend upon their weight. e) decrease

How would doubling the made of an object change the objects potential energy

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •