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A solid sphere of uniform mass 5.0 kg is released from rest from the top of a slanted roof that is
5.0 m long and angled at 30", as shown above. The sphere rolls without slipping. Rotational
The following are congurations of electric charges
located at the vertices of an equilateral triangle. Point
I [S In the plane of the triangle and equidistant from
- ' the i ~ - de
(a) L 95mg . formation in the graph: termine the t
immediately after the switch is closed. p0 6mm dlffcmnce V0 across the was
ii. WOUId die oPen circuit'voltage 0f the fresh battery have been less than, greater than. 01' equal
to the va
2000 EM 2. The circuit above contains a capacitor otcapacitance C. a power supply of emf 8, two
reststom of resistances R1 and R; and two switches. 3'1 and 82. initially. the capacitor is uncharged and both
swuehcs are open. Switch 81 then gets
A charged line, like the one above, extends from y = 2.500m to y = 2.50cm. The total charge
distributed unifomlly along the line is -7.00 nC.
. _ . . . 1 Q
a. Show that the electric eld at pomt P IS described by the equation E = 47:60 XW
in the negati
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a 1997 Physics C 50]0' Distribution
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an. .x'e-Pf 3:. .A refit
E&M 2 (15 points)
(a) 3 points
Using Gauss Saw
IE1} = 9.
E - 4,?sz x -Q
For the correct magnitude 2 points
E = l .2.
432'0 R '
For the c