Answer:
Y_1 = 1.195 m = 119.5 cm
Explanation:
For nth order bright fringe, the distance from the center of the pattern is given by :-

Where,
n = order of nth bright fringe. = 1
wavelength of given light = 
D = distance between the screen and slits. = 3.4 m
and d = separation between the slits. 

Y_1 = 1.195 m = 119.5 cm
The neutrophil are a tipe of white blood cells. Those are the first to migrate to the site of the infection to kill the invaders.
The second problem requires a figure to be answered. For the first problem
The acceleration of the sack is
1.5² - 0² = 2a(0.2)
a = 5.63 m/s2
The reaction of the ramp is
F = 8 kg (5.63 m/s2)
F = 45 N
Differentiate the kinematic equation involving time to get the rate of increase of the velocity.
The work done by each motor is c) 
Explanation:
The work done when lifting an object is equal to the change in gravitational potential energy of the object:

where
m is the mass of the object
g is the acceleration of gravity
is the change in height of the object
In this problem, each motor is lifting one elevator, so the mass of each elevator is
m = 1000 kg
and we have


Therefore, the work done by each motor is

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