Did you use the same number/equation as well?
F(net(q1,3))= k(q1 *(3.0)(q3))/2(d)^2
= - ( (9.0e^9 N m^2/C^2) * 20e^-6 C * (3.0)(20e^-6 C) )/ 2 (0.11 m)^2 = - 446.3 N
Homework Statement
Given that q = 20 µC and d = 11 cm, find the direction and magnitude of the net electric force exerted on the point charge q1 below.
Homework Equations
F(elect) = k (q1,q2)/d^2
The Attempt at a Solution
1. after converting each unit to its appropriate form,
F(net...
Homework Statement
Two closes containers are connected by a valve, which initially separates the containers from each other. C
Container A has 8.00 L of H2 at 3.00 atm and temperature 400 k.
Container B has 6.00 L of O2 at 4.00 atm and temperature 400 k
The valve is opened, the gases mix, and...
would i be able to find L by square rooting (w,h,ℓ) and then multiplying it with the 2?
update: i manage to figure out the equation by doing just that. Thanks for your help!
Homework Statement
The length ℓ, width w, and height h of a box change with time. At a certain instant the dimensions are ℓ = 4 m and
w = h = 9 m, and ℓ and w are increasing at a rate of 1 m/s while his decreasing at a rate of 6 m/s. At that instant find the rates at which the following...
Homework Statement
A model rocket takes off from ground level accelerating upward at a = 3.0 g. This upward acceleration lasts for a time τ = 15 s. Afterward the rocket continues upward, eventually stops rising, then falls back to the ground.
How much time passes from the initial upward...
Homework Statement
Vector A has magnitude A = 4.0 units and is directed θA = 15◦ counterclockwise from the positive x-axis. Vector B has magnitude B = 4.0 units and is directed θB = 85◦ counterclockwise from the positive x-axis. Determine the following quantity: |A + B|^2 − |A − B|^2...
Homework Statement
A disk of radius 16 cm rotating around a fixed axis at its center is accelerated from rest to an angular velocity of +13rev/min in +0.27 rev.
(A )Find the angular acceleration (in rad/s^2), which is assumed to be constant, during this time interval.
(B) what is the total...