Homework Statement
(a) Determine the capacitance of a Teflon-filled parallel-plate capacitor having a plate area of 1.90 cm2 and insulation thickness of 0.0600 mm.
(b) Determine the maximum potential difference that can be applied to the capacitor.
kV
Homework Equations
I THOUGHT C =...
to be honest I am not sure what the answer to:
If the electric force is the net force, what is the relation between these two equations?
we only just barely learned those equations, and i haven't seen any type of sample problem close to this one...
I don't know where to start, even with...
[SOLVED] Magnitude of initial acceleration
Homework Statement
A particle of mass 67 g and charge 25 microC is released from rest when it is 89 cm from a second particle of charge -10 microC. Determine the magnitude of the initial acceleration of the 67 g particle. Answer in units of (m/s)^2...
hmmm... I think maybe my angles are wrong.
I did Vector D x-components: 0 + (2.8cos(45)) + (9.9cos(191))
Vector D y-components: 7.4 + (2.8sin(45)) + (9.9sin(191))
The answer ended up being 10.769.Thank you :)
i don't exactly understand what we are trying to do anymore then.. the answer isn't the addition of the 3 vectors magnitudes?
Is the answer the magnitude of one "new vector?" -- Like if we make a Vector D and give it an x and y component, from the addition of the first 3 vectors?
[SOLVED] Magnitude of Single Displacement:
Please bear with me, I'm going to try and properly format this, so you forum-goers actually want to help me out. :cool:
Homework Statement
A novice golfer on the green takes three strokes to sink the ball. The successive displacements are 7.4 m...
eh still confused even tho I shouldn't be... I am thinking now that since there is no ratio for vector A, and that it has only one component ( straight up on the y-axis ) that maybe Vector A's angle is really 360 deg?
Which would make our answer angle 360 - 30.497 ... or something similar to...
yea I started getting a headache.
Ive been stumped on the arctan thing for a while, its been a while and honestly don't even remember what the purpose of inverse tan is... i understand that tan gives you opposite over adjacent, but I really am truly stumped on what I did wrong with this...
but I already used one method to compute the angle, so let's build on that one please.
According to my math, it would be -30.497deg - (+ 45.567deg) = -76.064 deg
Why is this wrong? I asked if I forgot something with the quadrants or if there was some kind of sign changing error I'm unaware...
[SOLVED] Angle between vectors:
Homework Statement
What is the angle between A and B ? Answer in units of degree.
Homework Equations
From the previous problem:
A = 1.02 units long in positive y direction [0i + 1.02j]
B = [-6.18i + 3.64j]
The Attempt at a Solution
I got the...