If a pendulum has 45 joules of total energy, how many joules of kinetic energy would it have at the bottom of its swing?
group of answer choices

25 joules

45 joules

0 joules

15 joules

We want most cells to be even in and out which is called

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

What was the land like over 500 million years ago? what was under the sea?