A kid on a trampoline has 1,000 J of potential energy when they are at the top of a jump. How much kinetic energy will the kid have when they come halfway down? A. 100 J

B. 250 J

C. 500 J

D. 1000 J

C. 500 J

Explanation:

Given;

potential energy of the kids at the top of the trampoline, P.E = 1,000 J

⇒At the top of the trampoline, the kids have only potential energy.

⇒On half way down, the kids have both kinetic energy and potential energy.

⇒At the bottom of the trampoline, the kids have only kinetic energy.

Based on the statements above, the kinetic energy of the kids half way down is calculate as;

P.E +  K.E = 1000 J

Base on law of conservation of energy,  P.E = K.E

2 K.E = 1000 J

K.E = ¹/₂ x 1000 J

K.E = 500 J.

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set