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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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