You fire a cannon off a 5 meter tall platform. The cannonball lands 62.6 meters away. What was the cannon ball's horizontal velocity?

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.