Answer:
They have mass is always true.
The answer is (B. The study of Matter and Energy) but technically you could consider physics all of these as engineering is based on physics and that would be the study of inventions, chemistry and biology were both discovered because of physics, and physics invokes more math than any other subject as it applies math to the entire Universe.
Force your doing it purposely and acceleration it’s just happening
Speeding up would make sense
Answer:
Slit separation, 
Explanation:
It is given that,
Wavelength of light, 
The angle between the central bright fringe and the second dark fringe, 
In case of double slits, the condition for dark fringe is given by :
n = 2
So, the slit separation is 
. Hence, this is the required solution.
