What are objects that shows how useful is friction in our daily lives. Give at least 3 objects​

Most energy in an ecosystem comes originally from_

Apendulum has a mass of 1.5 kg and starts at a height of 0.4 m. if it is released from rest, how fast is it going when it reaches the lowest point of its path? acceleration due to gravity is g = 9.8 m/s2. a. 2.8 m/s b. 0 m/s c. 5.9 m/s d. 4.3 m/s

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate