The moon is receding from the Earth at a rate of 3.8 centimeters per year. Please convert this rate into meters per second, and meters per year. What are the dimensions of this rate (where mass is M, length is L and time is T)?

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The moon is receding from the Earth at a rate of 3.8 centimeters per year.  

  • Please convert this rate into meters per second, and meters per year.  
  • What are the dimensions of this rate (where mass is M, length is L and time is T)?
A projectile is launched horizontally from an initial height of 1.2 m, and it strikes the ground 6 m downrange after 2.2 s in the air. Please calculate:

- The launch angle \( \theta \)
- The initial speed
- The magnitude of the velocity in the x-direction at impact
- The magnitude of the velocity in the y-direction at impact
Transcribed Image Text:A projectile is launched horizontally from an initial height of 1.2 m, and it strikes the ground 6 m downrange after 2.2 s in the air. Please calculate: - The launch angle \( \theta \) - The initial speed - The magnitude of the velocity in the x-direction at impact - The magnitude of the velocity in the y-direction at impact
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