Your science teacher brings in a speaker to talk to your class about climate change. During the session, students ask a few questions. Which questions are related to the current evidence on climate change?

The 20@kg wheel has a radius of gyration about its center g of kg = 300 mm. when it is subjected to a couple moment of m = 50 n # m, it rolls without slipping. determine the angular velocity of the wheel after its mass center g has traveled through a distance of sg = 20 m, starting from rest.

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?