To increase the distance between the nodal lines as it may
be difficult to determine the wavelength of the light source because the nodal
lines are too close, the student should spread the fringe pattern by having to
be able to decrease the separation of the slit.
The answer is C) Sodium.
~Deceptiøn
Explanation:
C is correct.
Newton second law states that force is directly proportional to acceleration with m being the constant of variation.

So


A is wrong, the constant g only happens in free fall or in vertical direction
B and D are wrong due to the mathematical error or equation error
A run though an open field during a thunderstorm is the answer
We have to add two vectors.
Vector #1: 0.15 m/s north
Vector #2: 1.50 m/s east
Their sum:
Magnitude: √(0.15² + 1.50²)
Magnitude = √(0.0225+2.25)
Magnitude = √2.2725
Magnitude = <em>1.5075 m/s</em>
Direction = arctan(0.15/1.50) north of east
Direction = <em>5.71° north of east</em>