BAB 2
2. a. r =3
2. b. r = Ɵ/36
2. C. r = 3 Sin Ɵ
-4 -3 -2 -1 0 1 2 3 4
-4
-3
-2
-1
0
1
2
3
4
r = 3
-6 -4 -2 0 2 4 6 8 10 12
-10
-8
-6
-4
-2
0
2
4
r = Ɵ/36
2. d. r= 3 Cos Ɵ
2. e.
r = 3
Sin Ɵ Cos Ɵ
2. f. r = 3
Cos² Ɵ -1
0 0.5 1 1.5 2 2.5 3 3.5
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
r = 3 Cos Ɵ
-1.5 -1 -0.5 0 0.5 1 1.5
-1.5
-1
-0.5
0
0.5
1
1.5
r = 3 Sin Ɵ Cos Ɵ
-2 -1.5 -1 -0.5 0 0.5 1 1.5 20
0.5
1
1.5
2
2.5
3
3.5
r = 3 Sin Ɵ
4. a. Ek = ½ mv²
4. b. V = -e²/r
0 1 2 3 4 5 6 702468
101214161820 Ek = ½ mv²
-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5
-1.5
-1
-0.5
0
0.5
1
1.5
r = 3 Cos² Ɵ -1
4.c. V = e²/r²
0 1 2 3 4 5 6 7
-8
-7
-6
-5
-4
-3
-2
-1
0
V = -e²/r
0 1 2 3 4 5 6 70
1
2
3
4
5
6
7
8V = e²/r²