In an experiment, students release a block from rest at the top of an inclined plane. The block slides down the plane through a vertical displacement h, and the students measure the speed v of the block using a photogate. The students expect the speed of the block at the end of this motion would be v=2gh−−−√. However, the measured v is significantly different. Which of the following is the most probable source of error the students should cite in their lab report?.

Why do you need to classify the size of a particle

Onstruct the grouped frequency table for the following data. 1, 1, 1, 1, 2, 2, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9

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.