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2 years ago

16/07/2021 23

Physics

1 answer:

ehidna [41]2 years ago

7 0

D. The movement that will require the greatest amount of work to be

done is a force of<u> 15n moving an object a distance of 5.0m</u> (75 J).

Work is said to be done when an applied force moves an object over a given distance.

W = Fd

where;

F is the applied force
d is the displacement of the object

<h3>A force of 10n moving an object a distance of 3.0 m</h3>

W = 10 x 3 = 30 J

<h3> A force of 10n moving an object a distance of 5.0m</h3>

W = 10 x 5 = 50 J

<h3>A force of 15n moving an object a distance of 3.0m</h3>

W = 15 x 3 = 45 J

<h3>A force of 15n moving an object a distance of 5.0m</h3>

W = 15 x 5 = 75 J

Thus, the movement that will require the greatest amount of work to be

done is a force of<u> 15n moving an object a distance of 5.0m</u> (75 J).

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Answer:

Length (l) = 6 m

height (h) = 3 m

Load(L) = 500 N

Effort (E) = ?

we know the principal that

E * l = L * h

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6E = 1500

E = 250

therefore 250 N work is done on the barrel.

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4 years ago

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Answer:

En esta respuesta voy a usar la unidad μm, tal que:

1 μm = 1*10^(-9) m

Objetos que pueden ser observados a simple vista:

Son todos aquellos objetos que podemos observar simplemente con nuestros ojos, con ellos podemos observar desde un edificio (con tamaños de decenas de metros) hasta algunos cabellos, que pueden tener un diámetro de 0.1 mm

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Este microscopio usa electrones en lugar de luz para formar imágenes.

Con él podremos observar cosas como las componentes de una célula (membranas, orgánulos grandes, etc), los cuales pueden medir unos pocos nanómetros (por ejemplo, una membrana celular tendrá un tamaño de entre 5 μm y 10 μm)

Microscopio de transmisión.

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<h3>Relationship between dielectric material and electric field</h3>

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Answer:

See Explanation

Explanation:

Solution:-

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