Homework Statement
Light of wavelength 559nm in vacuum passes through a piece of silica (index of refraction 1.437). Find the speed of light in silica. Answer in units of m/sHomework Equations
Index of Refraction = Speed of Light in Vacuum/Speed of Light in Substance
[n = c/v]The Attempt at a...
Homework Statement
Salmon often jum waterfalls to reach their breeding grounds.
The acceleration of gravity is 9.81 m/s^2
Starting 1.73 m from a waterfall .0386 m in height, at what minimum speed must a salmon jumping at an angle of 44.3 degrees leave the water to continue upstream? Answer...
Homework Statement
Question 1 [Correctly Solved]
A pedestrian moves 2.1km east and then 20km north. Find the magnitude of the resultant displacement vector. Answer in units of km.
Answer = 20.1km
Question 2
What is the direction of the displacement vector (using the counter-clockwise...