Recent content by jand

You have arranged that the magnetic field in a particular region of space is due North with a value of 0.01 T. An electron enters the field traveling to the West with a speed of 0.12 of the speed of light. As a result, the electron experiences a magnetic force which is upwards. (a) What is...

[b]1. You perform an experiment with a long column of air and a tuning fork. The column of air is defined by a very long vertical plastic tube with a circular cross section; the upper end of the tube is open to the outside air and the lower end of the tube is filled with water. The column of air...

so the force of the backpack and the force of the student would cancel each other and again it would be zero?

1. A student who's standing still on level ground weights 570 N and is wearing a backpack that is 81 N. a) What's the magnitude of net force on the student? b) What's the magnitude of the contact force on the student by the backpack? c) What's the magnitude of the contact foce on the...

basically it's 1.945 N - .486 N = 1.459 N (net force)? Regarding your point that "A is repulsed by B by 0.486N <--", even though .486 N is the force that A is being repulsed by C, that force that A is repulsed by B is the same?.. Sorry I'm so confused it just seems like the repulsive force...

Homework Statement Three tiny charged metal balls are arranged on a straight line. The middle ball is positively charged and the two outside balls are negatively charged. The two outside balls are separated by 20 cm and the middle ball is exactly halfway in between. The absolute value of the...