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Art [367]
3 years ago
7

In the circuit shown, the galvanometer shows zero current. The value of resistance R is :

Physics
1 answer:
Tasya [4]3 years ago
8 0

Answer:

its supposed to be (a) 1W

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The element oxygen forms molecules that each contain two oxygen atoms. The elements carbon and oxygen form molecules that each c
disa [49]

Answer:

The elements carbon and oxygen form molecules that each contain one carbon atom and two oxygen atoms is TRUE.

Explanation:

The elements carbon and oxygen form molecules that each contain one carbon atom and two oxygen atoms is true because a compound can only be formed from the combination of two or more elements but not from one element.

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4 years ago
A size-5 soccer ball of diameter 22.6 cm and mass 426 g rolls up a hill without slipping, reaching a maximum height of 5.00 m ab
Drupady [299]

Answer

According the conservation of energy

\dfrac{1}{2}mv_i^2+\dfrac{1}{2}I\omega_i^2+0 = mgh + 0

I for ball = \dfrac{2}{3}mr^2

\dfrac{1}{2}mv_i^2+\dfrac{1}{2} \dfrac{2}{3}mr^2\omega_i^2= mgh

\omega_i = \dfrac{v_i}{r}

v_i^2+\dfrac{2}{3}r^2(\dfrac{v_i}{r})^2 = 2gh

v_i^2+\dfrac{2}{3}v_i^2 = 2gh

v_i^2+[1+\dfrac{2}{3}]=2gh

v_i^2\dfrac{5}{3}=2gh

v_i=\sqrt{\dfrac{6gh}{5}}=\sqrt{\dfrac{6\times 9.8\times 5}{5}}

v_i = 7.67\ m/s

a) \omega_i = \dfrac{v_i}{R}

\omega_i = \dfrac{7.67}{0.113}

\omega_i =67.87\ rad/s

b) K_{rot} = \dfrac{1}{2}\dfrac{2}{3}mR^2\omega_i^2

   K_{rot} = \dfrac{1}{3}\times 0.426\times 0.112^2\times 67.87^2

   K_{rot} = 8.205\ J

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3 years ago
How do you write a letter to the editor of a newspaper in reference to bullying
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Open the letter with a simple salutation. ...

Grab the reader's attention. ...

Explain what the letter is about at the start. ...

Explain why the issue is important. ...

Give evidence for any praise or criticism. ...

State your opinion about what should be done. ...

Keep it brief. ...

Sign the letter.

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3 years ago
How does the position of an object relate to the energy stored in an object?
Kamila [148]

Answer:

Potential Energy

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