Suppose you add or subtract two quadratic trinomials that use the same variable. What are the possible classifications for the sum or​ difference?

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Why is no-till farming more sustainable than many traditional methods of farming