DOUBLE POINTS A musical pipe is closed at both ends. Resonance is created. What would happen if one end were opened?

The pitch would increase.
The pitch would stay the same.
The pitch would decrease.
The pitch would increase slowly over time.

Experiment scenario 2: a biology student wants to conduct a study of how the amount of food affects the weight gain for mice. i have set up four cages with a mouse in each cage. fill in the boxes that would allow the biology student to complete the study correctly

Which object is most likely represented by a dot?

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.