Physics, Chemistry, Mathematics Forums

Why is dipole moment of NH₃  > dipole moment of NF₃ ?

at STP what pressure  do we consider?is it 1 atm or 1 bar?

sir, how to solve for acceleration of two masses in image???

A wedge of mass M lies on a smooth fixed wedge of inclinaion θ. A particle of mass m lies on the wedge of mass M (please refer in the figure attached). All surfaces are frictionless and the distance of the block from the fixed wedge is l.Find

Normal reaction between M and m

the time after which the particle hits the fixed plane

In linear relation between l and t can be put using the equation:

t=al+b

What does a and b stand for?

If the equation  y=px=a.(1+p^2)^1/2  is regarded as a quadratic in p, it will have equal root if, x^2+y^2 is

(a) -a^2

(b) 0

(c) a^2

(d) None of these

what will be the relationship between the acceleration of the

masses shown in the figure?

An object is placed at a distance p = 25 cm from a concave mirror of focal length f = 10 cm. About the mirror is poured a small amount of liquid whose refractive index n = 1.4. Determine the distance of the image formed by this optical system to the mirror.

if F=0, what is acceleration of the machine shown?

A body moves from (1,2,3) to (4,5,6)in the co-ordiante sytem with a speed of 10m/s.Write its velocity vector.