The force F exerted on a ball during a collision with a wall is given as a function of time t by the equation F(t) = αt – βt2, where α = 800 N/s and β = 2000 N/s2. The ball first contacts the wall at t = 0, and the collision lasts for 0.10 s. What is the magnitude of the change in momentum of the ball?

The organic substance makes the walls of sclerenchyma cells tough and hard is the ___________

The structure that forms most of the flesh of an apple is the _____________

The response of plants to the relative length of light and darkness is termed ______________

The plant hormones that could be used by industry to increase the size of sugarcane production is __________________

Root hairs are found in the zone of ____________ of the root?

The number nuclei are present inside a pollen grain is _____________

A complete flower is always perfect, but a perfect flower may not always be complete.

Match the following genera with their correct family. 

The site of formation of pollen grains in a flower is in the _____________