Answer:
β 2 = 0.02575 mm
Explanation:
given data
wavelength = 563 nm
separation distance between adjacent bright fringes = 0.0290 mm
wavelength = 500 nm
solution
we get here separation distance between adjacent bright fringes that is express as
β =
..................................1
here D is distance from plane of slit to screen
and d is slit sepation that is constant
so
β 2 =
β 2 = 0.02575 mm
Answer:
Speed of A + B = 1 m/s
Explanation:
The speed of B = 0 because the distance does not change with time .
The speed of A = 1 m/s ( the slope of the line)
<span>v = (22/15)*98 = 143.7 ft/sec
For no friction, Θ = arctan[v²/(R*g)] = 32.68°
Anet = √[(v²/R + g²] = 33.2 ft/sec²
Af = Anet*sinΘ = 17.93 ft/sec²
Ff = m*Af = (3200/32.2)*Af = 1781.9 lb along the slope.
Fr = Ff*cosΘ = 1500 lb</span>Source(s):<span>Free body diagram
My 'cheat sheet' of physics formulae</span>
A roller coaster accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. whats the acceleration
Answer:
the final speed after attack is 69.09 km/h
Explanation:
lion weight = 173 kg
running northward at 82.7 km/hr
weight of gazelle = 36.2 kg
running eastward at 57.4 km/hr
using momentum conservation along north direction
(173) × (82.7) = (173 + 36.2 ) × vₙ
vₙ = 68.38 km/h
using momentum conservation along east direction
36.2 × 57.4 = (173 + 36.2 ) × vₓ
vₓ = 9.93 km/h

hence the final speed after attack is 69.09 km/h