a tennis ball is shot vertically upward in an evacuated chamber with an initial speed of 20.0 m/s at time t = 0 s. what is the magnitude of the acceleration of the ball when it is at its highest point?

Tortoise shells and snail shells are similar in function: they protect the organism from predators. based on a comparison of the organisms in the images, what can you conclude? 1. tortoises and snails have homologous organs, and they’re evolutionarily related. 2. tortoises and snails have homologous organs, and they belong to same species. 3. tortoises and snails have analogous organs, and they belong to the same species. 4. tortoises and snails have analogous organs, and they don’t belong to the same species. 5. tortoises and snails have analogous organs, and they aren’t evolutionarily related.

Jerrold has to buy 12 copies of a textbook which costs $36.25 per copy. how much must he spend for them?

Ricks boss often appriciates him for his work.how is rocks boss affecting his proformence