on a smooth inclined plane of angle A a smooth wedge of mass M and angle A placed on it in such a way that the upper face is horizontal . on this horizontal facer  is placed a block of mass m .
find the resultant acceleration of the block in subsequent motion.

how to draw  the free body diagram  for it?
 
please help me.

1) FIND EQN OF PLANE  passing through  pt (-1 , 3,2) and perp to each of plane

x+ 2y +3 z = 5

 

3x + 3y + z =0

 

 

ANS: 7x - 8y +3z +25 =0

 

2)

 

find vector eqn of the line passing throu (1,2,3)

and parallel to plane

r. (i - j + 2k) = 5

and r. (3 i + j + k) = 6

 

 

ANS:  r= i + 2j + 3 k + lamda ( -3 i + 5j + 4k)

 

 

3)

 

find vector eqn of line via pt  (1, 2 ,-4)

and perp to two lines

 

x-8 / 3 = y+19 / -16 = z-10 / 7

 

&

 

x - 15 / 3 = y - 29 / 3 = z - 5 / -5

 

tried cross prod after converting to vector ans didn't come.

 

ANS: r = i + 2 j - 4 k + lamda ( 2 i + 3 j + 6 k)

0 to pi (x dx / (1 + sin x) )

 

please give me method and the answer.

 

i want to know it because i made a mistake in my exam in this Q.

two concentric coplanar circular loops have diameters 20 and 2m resiistance of unit length of wire =106-4

v = 4+ 2.5 t) V applied to larger. current in smaller loop is?

 

ans: 1.25 A

 

the time varing magnetic field is set up to pass vertically through the coil of area 5*10^-3  m2 field increased 0 to 0.8 T constant rate b/w 0to 0.2 sec.

decreased to 0 frm 0.2 - 0.4 sec. cycle repeated 12000 times.

 

wht is the induced emf?

 

Ans: -0.2V

how?

Cl more electronegative because it needs 1 more e- to complete octect. its so in need of e- that it pulls shared pr of e- towards itself in covalent bonds. so more electronegative.

unit W/m2

 

what is it?

how do you define it?

why humidity increases v increase?

density increse so v shd decrese?

 

why am i wrong?

what is its structure?

and adipid acid's too

pls help!