Which lines appear to be parallel? A А
1 answer:
You might be interested in
Answer:
1.) y= +
2.) y = - 3
3.) y = 3x - 2
4.) y = - 8
5.) y = + 4
6.) y = 9x - 1
7.) y = - - 4
8.) y = - + 2
9.) y = - 1
10.) y = -5
Answer:
a) is demonstrated below, b) T=1.462N, c) T=14.6N
Step-by-step explanation:
a) Refer to the attached diagram.
Since the bird is standing in the middle of the line and each half is a straight line, Ta=Tb, so we will call the tension T=Ta=Tb and Tay=Tby
By trigonometry Tay=Ta·Sinθ
Since the system is in equilibrium W=Tay+Tby then:
W=2·Tay=2·Ta·Sinθ=2·T·Sinθ
Since W=mg, being m the mass of the bird and g, gravity:
Isolating T, we demonstrate that
b) Replacing θ=5º, m=0.026kg and g=9.8m/s² in the last equation, we can get the tension in Newtons:
c) With θ=0.5º
