Answer:

Explanation:
As we know by the formula of diffraction

so we have
a = slit size
= angular position of Nth minimum
so we will have
for first minimum of 630 nm light


Now for another wavelength second minimum is at 60 degree angle



Answer:
3683.67 m
Explanation:
Formula for maximum height of projectile is given by the equation;
h = u²/2g
Where u is initial velocity and g is acceleration due to gravity
We are given u = 190 m/s
Thus;
h = 190²/9.8
h = 36100/9.8
h = 3683.67 m
A gerund usually ends wit -ing, so we must find the word that includes that.
Loading includes ing at the end.
Final answer: b. loading
My calculations state, not rounding, the mass is 1.8
Fg=m•g || IE: Weight = mass x gravity
Therefore, the relationship are as follows:
mass and gravity are inversely proportional
mass and weight are directly proportional
weight and gravity are directly proportional