The answer is D.All of the above
Answer:
1426.8 N
Explanation:
Pressure, P = 3567 Pa
The area of Mr. Rosa’s foot, A = 0.4 m²
We need to find the force does one kick from Mr. Rosa create. The pressure acting due to force is given by :
where
F is force
So, the required force is 1426.8 N.
Answer:
<h2>4 N to the right</h2>
Explanation:
<u>The force acting to the right of the body is acting in the positive x direction while the force acting to the left of the body is acting in the negative x direction.</u>
If a force of 12N acts to the left on a body and a force of 16 N acts to the right, force acting to the left will be -12N while that acting to the right will be +16N.
The resultant force acting on the bod will be the sum of the two forces.
Resultant = -12N+16N
Resultant = 4N
<u>The direction of the resultant force will be towards the right since the resultant is a positive value.</u>
Answer:
The wavelength is 503 nm
Explanation:
Considering constructive interference , this means that route(path) difference is equal to the product of order of fringe and wavelength of the light
i.e dsinθ = m
Where is the wavelength of light and m is the order of the fringe
Looking at θ to be very small , sin θ can be approximated to θ
and
Substituting this into the above equation
making x the subject
This above equation will give the value of the distance of the order fringe of the wavelength from the central fringe
Replacing with the value given in the question we have
= 710 nm m = 2 d =0.66 mm , l = 2.0 m
The separation of the second fringe from central maximum is 4,303 mm
To obtain the separation of the second order fringe of the unknown light from central maximum
Now to obtain the wavelength of this second source
from
Now substituting 3,053 mm for 2.0 mm for l , 0.66 mm for d and 2 for m in the above formula
A. 4500*sin78=4401 N
b. 4500*cos78 = 935 N
c. this one is from geometry.
Two forces 4500N and 686N with the angle 78+90=168 in btw of them
Net force =
= 3831 N