A 165 N object is supported by three cables(T1, T2 and T3), of which T1 and T2 are making angles θ1 = 52o and θ2 = 39o as shown
in Figure.
Here T3 = 165 N, calculate the tensions T1 and T2.
1
(a) Tension in string 1, T1 (in Newton) =
Answer for part 1
(b) Tension in string 2, T2 (in Newton) =
Answer for part 2
Hhgeppp plzzz
Here T3 = 165 N, calculate the tensions T1 and T2.
1
(a) Tension in string 1, T1 (in Newton) =
Answer for part 1
(b) Tension in string 2, T2 (in Newton) =
Answer for part 2
Hhgeppp plzzz
1 answer:
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<h2>Question: </h2>
The nearpoint of an eye is 151 cm. A corrective lens is to be used to allow this eye to clearly focus on objects 25 cm in front of it. What should be the focal length of this lens?
Answer:
29.96cm
Explanation:
Using the corrective lens, the image should be formed at the front of the eye and be upright and virtual.
Now using the lens equation as follows;
-------------(i)
Where;
f = focal length of the lens
v = image distance as seen by the lens
u = object distance from the lens
From the question;
v = -151cm [-ve since the image formed is virtual]
u = 25cm
Rewrite equation (i) to have;
Substitute the values of v and u into the equation;
f = 29.96cm
The focal length should be 29.96cm