A spring has a spring constant k = 20N/cm. What load is needed to produce an extension of 2.5cm? ASAP please !

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

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

=force × distance a. work b. velocity c. pressure d. momentum