Depends on the elasticity and density of the medium through what it is traveling <span> </span>
Answer:
55
Explanation:
I hope this answer help u
Answer:
- 93.6 N in the 41° cable
- 155.6 N in the 63° cable
- 200 N in the vertical cable
Explanation:
Let T and U represent the tensions in the 41° and 63° cables, respectively. In order for the system to be stationary, the horizontal components of these tensions must balance, and the vertical components of these tensions must total 200 N.
Tcos(41°) =Ucos(63°) . . . . . balance of horizontal components
U = Tcos(41°)/cos(63°) . . . . write an expression for U
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The vertical components must total 200 N, so we have ....
Tsin(41°) +Usin(63°) = 200
Tsin(41°) +Tcos(41°)sin(63°)/cos(63°) = 200
T(sin(41°)cos(63°) +cos(41°)sin(63°))/cos(63°) = 200
T = 200cos(63°)/sin(41° +63°) ≈ 93.6 . . . newtons
U = 200cos(41°)/sin(41° +63°) ≈ 155.6 . . . newtons
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The vertical cable must have sufficient tension to balance the weight of the traffic light, so its tension is 200 N.
Then the tensions in the 3 cables are ...
41°: 93.6 N
63°: 155.6 N
90°: 200 N
Biodiversity*
Without biodiversity an ecosystem is impossible and all organisms would have to rely on outside sources for energy, in our case the sun would be the only way to survive.
We also rely on biodiversity to create varying habitats, which is not actually necessary for survival but is valuable to humans since we crave identity and if everything were identical we would break down physiologically
Answer:
The angle of incidence is 38.8°.
Explanation:
let n1 = 1.5 be the refractive index of glass and ∅1 be the angle of incidence, let n2 be the refractive index of air and ∅2 be the angle of refraction.
by Snell's law:
n1×sin(∅1) = n2×sin(∅2)
sin(∅1) = n2×sin(∅2)/n1
= (1)×sin(70)/1.5
∅1 = 38.8°
Therefore, the angle of incidence is 38.8°.
