Answer:
The spacing between the slits is
Explanation:
From the question we are told that
The wavelength of the light is 
The distance of the slit from the screen is 
The number of bright fringe is 
The length the fringes span is 
The fringe width (i.e the distance of between two successive bright or dark fringe) is mathematically represented as

Where d is the distance between the slits
is the fringe width which can also be evaluated as

Substituting values


Making d the subject of formula in the above equation

Substituting values

Answer:695.5 N
Explanation:
mass of child 
Length of chain 
Tension in each chain 
(a)Tension at bottom point 
At lowest Point





(b)Force exerted by Seat will be Equal to Normal reaction




The statements about communication that is most accurate is:
A. Most body language is related to emotions and attitudes
Explanation:
We communicate with rather more than words: once we act with somebody, our body features a language
of its own. The approach we have a tendency to sit, the gestures we have a tendency to create, the approach we have a tendency to speak, what quantity eye contact we have a tendency to create all
of these are non-verbal ways that of act that impact the messages our words are causing.