Freight trains can produce only relatively small accelerations and decelerations. What is the final velocity, in meters per seco
nd, of a freight train that accelerates at a rate of 0.065 m/s^2 for 9.75 min, starting with an initial velocity of 3.4 m/s? If the train can slow down at a rate of 0.625 m/s^2, how long, in seconds, does it take to come to a stop from this velocity? How far, in meters, does the train travel during the process described in part (a)? How far, in meters, does the train travel during the process described in part (b)?
If the theory were to be proved you you need to repeat the experiment over and over again so that way you can prove that it is true wuth the same results.
A downward force of magnitude 5 N is exerted on the book by the force of ... Do the downward force in Part A (gravity) and the upward force in Part B ...
This can be solve using snell's law. snell's law equation is :
N1 / N2 = sin a2 / sin a1 where N1 is the index of refraction of the air which is equal to 1 N2 is the index of refraction of the medium a2 is the angle of refraction a1 is the incident angle
subsitute the given values 1 / N2 = 0.173 / 0.217 N2 = 1 ( 0.217 / 0.173) N2 = 1.25 is the index of refraction
