The distance between two telephone poles is 36 m. when a 1.99 kg bird lands on the telephone wire midway between the poles, the wire sags 0.118 m. the acceleration of gravity is 9.8 m/s 2 . how much tension in the wire does the bird produce? ignore the weight of the wire. answer in units of n.

1501.86 N

Explanation:

Given

Distance between Poles=36 m

Mass of bird (m)=1.99 kg

wire sag =0.118 m

angle made by wire with horizontal is given by

Let be the tensions in the wires

On resolving

thus

and

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation