What is a property of “normal force”? a. It always points perpendicular to the contact surface. b. It always points parallel to
1 answer:
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Answer:
Explanation:
Time can be found by dividing the distance by the speed.
The distance is 45 meters and the speed is 12.5 meters per second.
Divide. Note that the meters, or "m" will cancel each other out.
It will take the dolphin 3.6 seconds to swim a distance of 45 meters are 12.5 meters per second.
Answer:
a
The number of fringe is z = 3 fringes
b
The ratio is
Explanation:
a
From the question we are told that
The wavelength is
The distance between the slit is
The width of the slit is
let z be the number of fringes that appear between the first diffraction-envelope minima to either side of the central maximum in a double-slit pattern is and this mathematically represented as
Substituting values
z = 3 fringes
b
From the question we are told that the order of the bright fringe is n = 3
Generally the intensity of a pattern is mathematically represented as
Where is the intensity of the central fringe
And Generally