Answer:
Explanation:
angle covered in one rotation = 2π radian
θ = ωt + 1/2 αt²
θ is angle rotated in time t with initial angular velocity of ω and angular acceleration α .
Putting the values
2π = 0 + 1/2 x α x 3²
α = 1. 4 radian / s²
linear acceleration = α x r = 1.4 x 1.5 = 2.1 m / s².
Initial acceleration = 2.1 m /s²
final angular velocity = α t = 1.4 x 3 = 4.2 radian / s
linear velocity = 4.2 x 1.5 = 6.3 m /s
centripetal acceleration = v² / R = 6.3² / 1.5 = 26.46 m /s²
radian acceleration = 26.46 m /s
tangential acceleration = 2.1 m /s²
Total final acceleration = √ ( 26.46² + 2.1² )
= √ ( 700.13 + 4.41)
Final acceleration = 26.53 m / s²
Answer:
Make a graph for better visual representation.
Explanation:
Presenting data like that would require someone to see the increase. The best way would be a graph to be shown, to really show the impact by the line going up in the graph.
Answer:
a
Explanation:
it increases with increasing height
Answer:
the index of refraction for the transparent material is 1.48
Explanation:
let n1 = 1.0 be the refractive index of air and n2 be the refractive index of the trasnparent material.
then:
Snell's Law state that:
n1×sin(∅1) = n2×sin(∅2)
where ∅1 = 56.0° is the angle of incidence and ∅2 = 90 - 56.0 = 34° be the angle refraction.
n1×sin(∅1) = n2×sin(∅2)
n2 = n1×sin(∅1)/sin(∅2)
= (1.0)×sin(56.0°)/sin(34.0°)
= 1.48
Therefore, the index of refraction for the transparent material is 1.48
