Which statement is characteristic of reproduction in humans?
1. The reproductive cells of males and females differ in chromosome number.
2. Males and females produce gametes in the ovaries.
3. Males and females produce the same number of gametes.
4. The reproductive cycles of males and females are regulated by hormones.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)

answerca air mass;