In figure shown, the particles have charges q1= q2 =100 nc and q3 = q4 =200 nc, and distance a = 5. 0 cm. What are the (a) x and (b) y components of the net electrostatic force on particle 3?.

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.

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers

A24-n net force acts on a 8-kg rock.what is the acceleration of the rock?