Homework Statement
You have a horizontal spring system such that it undergoes SHO on a frictionless surface. with a known mass attached at the end of the spring. When that mass reaches its maximum position (amplitude) a second identical mass is dropped on top of the initial, effectively...
sin 70° = Ty/T
T = (m*g)/sin 70°
T = 0.003*9.81/sin 70°
T = 0.03132 N
Tx = T*cos 70°
Tx = (0.03132)*cos 70°
Tx = 0.01071 N
1/2*r = sin 20°
r = 0.6840 m
Tx = k*q2/r2
q = (Tx*r2/k)1/2
q = [(0.01071)(0.6840)2/(8.99*109)]1/2
q = 747 nC = 7.47* 10-7 C
How about now?
Homework Statement
Two 3.0g spheres on 1.0m-long threads repel each other after being equally charged, as shown in the figure.
Homework Equations
F = k*q1*q2/r2
The Attempt at a Solution
sin 70° = Ty/T
T = (m*g)/sin 70°
T = 0.003*9.81/sin 70°
T = 0.03132 N
Tx = T*cos 70°
Tx =...
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Homework Statement
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