Quantum Theory 1. (II) (a) What is the velocity of a beam of electrons that go undeflected when passing through crossed perpendicular) electric and magnetic fields of magnitude $1.88*10^4(V/m)$ and… Click here to read more
Welcome to Physics Homework - Questions & Answers
This site was started back in 2008, and features, among others, a collection of physics homework exercises and tutorials for all levels of physics students (high school and college).
We hope our site will help you advance in your studies and make it easier to understand physics, hence the world that surrounds us!
All the contents of this site were written by Valentin Bogatu (Physics, PhD).
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Angle between axis x and segment AD, angle FAD is $tan(FAD) =DF/AF =4/3$, hence $FAD =53.13 degree$ angle between axis x and normal to the surface ABCD is$alpha = 90-FAD… Click here to read more
1) An object of mass 5.0 kg revolves at 600 rpm in a horizontal circle of radius 1.5 m. Determine the a) period of the object’s motion in secondsb) object’s… Click here to read more
A baseball player hits the baseball with a velocity of 63 m/s at an angle of 22 degrees with the ground. What is the range of the baseball? First, one… Click here to read more