I can't see numbers here, so here are all the answers:
1) the frequency is c/λ = 3e8/556e-9 = 5.39e14Hz
2) light travels at <span>299,792,458 m/s. So in nanoseconds it's 0.299792458m. This is about 1/3 of a meter which is about one foot.
3) length is L = ct = (</span>299,792,458 m/s)(6e-15) = 1.799e-6m or 1.799μm
Answer: The equilibrium constant can help us understand whether the reaction tends to have a higher concentration of products or reactants at equilibrium. We can also use K c K_\text c KcK, start subscript, start text, c, end text, end subscript to determine if the reaction is already at equilibrium.
Explanation:
Answer:
The altitude of the plane is 379.5 m.
Explanation:
Initial horizontal velocity, u = 59.1 m/s
Horizontal distance, d = 521 m
let the time taken by the packet to cover the distance is t.
Horizontal distance = horizontal velocity x time
521 = 59.1 x t
t = 8.8 s
let the vertical height is h .
Use second equation of motion in vertical direction.
The whole secret of things that are balanced on a pivot like this is:
The sum of all of the 'moments' is equal on both sides.
The moment of each weight is (the weight) times (its distance from the pivot).
If you add up those for each eight on one side, it has to be equal to the sum
of all the ones on the other side.
<u>2. a).</u>
The moments on the right side are: (4 x 0.15) and (1 x 0.40).
They add up to (0.60 + 0.40) = 1.00
The only moment on the left side is (C x 0.25). Both sides have to be equal.
C x 0.25 = 1.00
Divide each side by 0.25, and you have C = 4 N .
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<u>2. b).</u>
The only moment on the left side is (5 x 0.40) = 2.00
The moments on the right side are (1 x 0.20) and (D x 0.30)
They add up to (0.3D + 0.2).
Both sides have to be equal. 0.3D + 0.2 = 2.0
Subtract 0.2 from each side: 0.3D = 1.8
Divide each side by 0.3: D = 6 N
