The three classes of levers can be found in your body. Use diagrams A, B, and C to answer the questions below. Also label the effort input force), fulcrum and load output force) on each diagram . LEVER B 3. Type of Lever : 4. How is this lever used in the body ?

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?