If you were exerting a lot of force to pull the sled at a 60° angle, but it was too heavy to move, are you doing work on the sled? Explain your reasoning.

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.

What is not true about kl and mn? what is mn? (show )