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Serga [27]
3 years ago
15

Telephone and electrical lines are allowed to sag between poles so that the tension will not be too great when something hits or

sits on the line. Suppose that a line were stretched almost perfectly horizontally betweern two poles that are 30 m apart. If a 0.25-kilogram bird perches on the wire midway between the poles and the wire sags 1.0 cm, what would the tension in the wire be?
Physics
1 answer:
navik [9.2K]3 years ago
7 0

Answer:

Tension in the wire= 1837.5 N

Explanation:

The answer along with solution can be found in the image attached.

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The third law of thermodynamics,the principle of temperature.

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Choose the three statements that are true about valence electrons.
Varvara68 [4.7K]

We have that valence electrons poses the three characteristics stated, as

Group 14 (carbon group)  are identified by 4 valence electrons.

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Option A,B,C

<h3>Properties of Valence electrons</h3>

All elements in the same group or family have the same number of valence electrons: Yes, this is true as Group 14 (carbon group) are identified by 4 valence electrons.

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True, Group 14 (carbon group)  are identified by 4 valence electrons.

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2 years ago
Why the dogs lays down next to the wood stove? Is it radiation,convection,conduction?
malfutka [58]
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4 0
3 years ago
At the circus, the Human Cannonball is
svlad2 [7]

The correct answer is  1.4285714.

In physics, velocity is characterised as a vector measurement of the motion's direction and speed. To be more precise, the rate of change in an object's position relative to a frame of reference and time is another way to describe velocity. The definition of velocity simply states the rate of motion of an object in a specific direction. It determines how quickly or slowly something is going.

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Here velocity = 350m/s

diatnce = 500 m

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6 0
1 year ago
What will be the force if the particle's charge is tripled and the electric field strength is halved? Give your answer in terms
kirza4 [7]

Answer:

F' = (3/2)F

Explanation:

the formula for the electric field strength is given as follows:

E = F/q

where,

E = Electric Field Strength

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q = magnitude of charge experiencing the force

Therefore,

F = E q   ---------------- equation (1)

Now, if we half the electric field strength and make the magnitude of charge triple its initial value. Then the force will become:

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using equation (1)

<u>F' = (3/2)F</u>

3 0
3 years ago
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