If the speed of a roller coaster at the bottom of a hill is 20. 0 m/s, what is the tallest hill the coaster can climb, assuming no friction losses?.

Which characteristic demonstrates a healthy self-esteem? accepts others does not listen well seeks constant approval frustrates easily

Explain how earth is like a giant bar magnet. how is our magnetic field made?

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.