Post on 12-Aug-2020
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iugaza2010.blogspot.com
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(a)Force(b) momentum(c) acceleration (d) Work(e) weight.
1.3 The rectangular coordinate systems shown in Figure are right-handed except:
from fig: z x y a a a
from fig: (False)z y x a a a
from fig: x y z a a a
from fig: z y x a a a
from fig: ( )y z x False a a a
z x y a a a
n
n
( ) 0
( ) | || | sin a
| || | sin a
0
( ) . . .
( ) . 0
( ) | | 1 1 2 1
y
k
a
b A B
B A
c meaningless
d
e
x
A A
A B
B× A
A B B× A
A B C number C
a a
a
If F and G have the same unit vector, Gy is
2
2
2 6 10
140
5
26
63
140 26
y z
F
y z
G
G
G
GG
G
x
x
a a aa
a a aa
,if A and B are normal to each other, a is
. 0
1 0
1/ 2
A B
3 4 18 8
. 6 2 3 . 25 5 5
y
B y zA
x
x
a aa a a a
,the projection of A along ay is
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one of & with a range of: 2 and the other
a .a 0
the normal component to =1 4
the tangential(paralle)component 3 5 z
a
a a
semi-infinite(radial)
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9
9
20 10360
1022
36
sn z z
o
E a a a
the cube ( 3 3) will enclose two point charge:
1 2 30 20 10Q Q nC
4.4 The electric flux density on a spherical surface r = b is the same for :a point charge Q located at the origin and for charge Q uniformly distributed on surface r = a(a < b).
9. 1 10 40 6 14 20W QF dl nJ
Any surface on which the potential is the same throughout is known as an equipotential surface.
The intersection of an equipotentialsurface and a plane results in a path or line known as an equipotentialline
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