Since q3=q4 and they are opposite to each others they cancel out
But as soon as I try to find the electric field of one of the charges, I need the radius which is not given.
By isolating the electric field for radius
E=(kq)/r^2
I now have two unknowns
The question goes like this.
A frictionless puck is slid horizontally off the top of an infinite set of stairs with a speed of 3m/s. The steps are standard size: 20cm high and 20 cm wide. Which step will the puck strike first?Since the pluck will not get faster on the x-axis, these are my...
This is the question:
A ball is thrown with a speed of 6m/s at an angle of 25° above the horizontal from the top of a cliff. The ball strikes the ground 15 m from the bottom of the cliff.
How long does it take the ball to strike the ground?
How long is the cliff?Here's a visual representation...