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marysya [2.9K]
3 years ago
5

Help please Derive an equationTa=1.44T1/2​​

Physics
1 answer:
Anna11 [10]3 years ago
3 0

Explanation:

To derive an equation you must indicate the variable you want to solve for.

Here we have tension of an object A and Tension 1.

Two variables or unknown are given hence we cannot derive any other equations.

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What is the repulsive force between two pith balls that are 9.00 cm apart and have equal charges of -28.0 nC?
Alexus [3.1K]

Answer:

Force, F=8.71\times 10^{-4}\ N

Explanation:

Given that,

Charges on pith balls, q_1=q_2=-28\ nC=-28\times 10^{-9}\ C

Distance between balls, d = 9 cm = 0.09 m

Let F is the repulsive force between two pith balls. We know that the repulsive force between two charges is given by :

F=k\dfrac{q_1^2}{d^2}

F=9\times 10^9\times \dfrac{(-28\times 10^{-9})^2}{(0.09)^2}

F = 0.000871 N

or

F=8.71\times 10^{-4}\ N

So, the repulsive force between the pith balls is 8.71\times 10^{-4}\ N. Hence, this is the required solution.

7 0
4 years ago
Explain how the sun's position in the sky would change the direction of your shadow if you were to stand in the same place all d
rusak2 [61]
Shadows move in the opposite direction to the sun. Since the sun changes position throughout the day this alters the direction and position of your shadow
4 0
4 years ago
A Astronut Went To Space With Two Materials A Flag And Pen Weight 5000kg Calculate The Weight Of Two Materials?
djverab [1.8K]
You have to divide both objects to get the answer
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3 years ago
Give reasons. <br>A revolving stone tied in a string files away when the string breaks. ​
Anastaziya [24]

It is cause of the intertia of direction

when the string breaks the force acting on the stone ceases

without the force the stone flies away along the tangent of circular path

<em>hope</em><em> </em><em>that</em><em> </em><em>helped</em><em> </em><em>:</em><em>)</em><em>)</em>

3 0
4 years ago
a carnot engine absorbs 200J of heat from a reservoir at the temperature of the normal boiling point of water and rejects heat t
emmainna [20.7K]

Answer:

The heat rejected is 146J.

The work done by the engine is 54J.

The thermal efficiency is 0.27

Explanation:

The efficiency of the carnot engine, which is working between a hot source at a temperature T_{1} and a cold source at a temperature T_{2}, is given by:

Efficiency=1-\frac{T_{2}}{T_{1}}

The normal boiling point of water is 373 K. (T_{1})

The temperature of triple point of water is 273.15 K (T_{2})

Efficiency=1-\frac{273.15}{373}=0.27

Efficiency=\frac{Work\:done}{Heat\:absorbed}=\frac{Work\:done}{200}=0.27\\Work\:done=0.27\times200=54J\\Work\:done=Heat\:absorbed-Heat\:rejected\\Heat\:rejected=Heat\:absorbed-Work\:done=200-54=146J

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4 years ago
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