The point of contact the path difference is zero but one of the interfering ray is reflected so the effective path difference becomes λ/2 thus the condition of minimum intensity is created in the center.
Answer:
I=2 kg.m/s
Explanation:
The impulse is defined as the change of momentum:
![I=p_f-p_o\\I=m*v_f-m*v_o\\I=0.02kg*[(-60m/s)-40m/s]\\I=2kg.m/s](https://tex.z-dn.net/?f=I%3Dp_f-p_o%5C%5CI%3Dm%2Av_f-m%2Av_o%5C%5CI%3D0.02kg%2A%5B%28-60m%2Fs%29-40m%2Fs%5D%5C%5CI%3D2kg.m%2Fs)
We took the final velocity as negative since it is going on the opposite direction of the intial motion of the ball.
Answer: 704
Explanation:Vi = 0 m/s
vf = 65 m/s
a = 3 m/s2
d = ??
vf2 = vi2 + 2*a*d
(65 m/s)2 = (0 m/s)2 + 2*(3 m/s2)*d
4225 m2/s2 = (0 m/s)2 + (6 m/s2)*d
(4225 m 2/m2)/(6 m/s2) = d
d = 704 m
Nitrogen is a crucially important component for all life. It is an important part of many cells and processes such as amino acids, proteins and even our DNA. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.
Answer:
2.815 seconds
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration
![s=ut+\frac{1}{2}at^2\\\Rightarrow 1609.34=16.58\times t+\frac{1}{2}\times 0.0105\times t^2\\\Rightarrow \\\Rightarrow 4.905t^2+16.58t-1609.34=0](https://tex.z-dn.net/?f=s%3Dut%2B%5Cfrac%7B1%7D%7B2%7Dat%5E2%5C%5C%5CRightarrow%201609.34%3D16.58%5Ctimes%20t%2B%5Cfrac%7B1%7D%7B2%7D%5Ctimes%200.0105%5Ctimes%20t%5E2%5C%5C%5CRightarrow%20%5C%5C%5CRightarrow%204.905t%5E2%2B16.58t-1609.34%3D0)
![t=\frac{-16.58+\sqrt{308.69254}}{0.0105},\:t=\frac{-16.58-\sqrt{308.69254}}{0.0105}\\\Rightarrow t=94.25, -3252\ s](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B-16.58%2B%5Csqrt%7B308.69254%7D%7D%7B0.0105%7D%2C%5C%3At%3D%5Cfrac%7B-16.58-%5Csqrt%7B308.69254%7D%7D%7B0.0105%7D%5C%5C%5CRightarrow%20t%3D94.25%2C%20-3252%5C%20s)
Time taken with the acceleration is 94.25 seconds
Time = Distance / Speed
![\text{Time}=\frac{1609.34}{16.58}\\\Rightarrow \text{Time}=97.065\ s](https://tex.z-dn.net/?f=%5Ctext%7BTime%7D%3D%5Cfrac%7B1609.34%7D%7B16.58%7D%5C%5C%5CRightarrow%20%5Ctext%7BTime%7D%3D97.065%5C%20s)
Difference in time = 97.065-94.25 = 2.815 seconds