Which of the following best describes an experiment designed to study and observe adhesion in water molecules

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

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

Does the distance travelled by an oscillating mass between times t=0 and t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanation.