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natima [27]
3 years ago
9

EMERGENCY! PLEASE HELP!

Physics
1 answer:
hichkok12 [17]3 years ago
8 0

Answer: Volume = 1080m^3

Explanation:

Given that the prism has a 15 m by 18 m rectangular base and a height of 4 m

Volume is the product of length, breath and height. That is

Volume = L × B × H

Where

L = 18 m

B = 15m

H = 4m

Using the formula above gives:

Volume V = 18 × 15 × 4

V = 1080 m^3

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A circular loop of radius 11.9 cm is placed in a uniform magnetic field. (a) If the field is directed perpendicular to the plane
djverab [1.8K]

Answer:

(a). The strength of the magnetic field is 0.1933 T.

(b). The magnetic flux through the loop is zero.

Explanation:

Given that,

Radius = 11.9 cm

Magnetic flux \phi=8.60\times10^{-3}\ T m^2

(a). We need to calculate the strength of the magnetic field

Using formula of magnetic flux

\phi=BA\cos\theta

\phi=BA\cos0

\phi=BA

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B=\dfrac{\phi}{\pi r^2}

Put the value into the formula

B=\dfrac{8.60\times10^{-3}}{\pi\times(11.9\times10^{-2})^2}

B=0.1933\ T

(b). If the magnetic field is directed parallel to the plane of the loop,

We need to calculate the magnetic flux through the loop

Using formula of flux

\phi=BA\cos\theta

Here, \theta=90^{\circ}

\phi=BA\cos90

\phi=0

Hence, (a). The strength of the magnetic field is 0.1933 T.

(b). The magnetic flux through the loop is zero.

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3 years ago
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Coulomb is a very large unit for practical use. Justify your answer if 10^10 electrons are transferred from a body/second
zlopas [31]
Given:

10^10 electrons per second

To justify that coulomb is a very large unit for practical use, we need to convert the quantity of electron given to Coulombs:

From literature, 

1 Coulomb is equivalent to 6.242×10^18 electrons<span>.

So,

= 10^10 electrons * (1 coulomb/</span><span>6.242×10^18</span> electrons) / second
<span>= 1.602 x 10^-9 coulumbs

This value is too small to be used in an actual setting. 

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BabaBlast [244]
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solmaris [256]

Answer:

<em><u>NA2SO3</u></em> is the reactant in the reaction

Explanation:

The substances which take part in a chemical reaction are called <em><u>reactants</u></em>

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When happens when an object becomes positively charged?
jeyben [28]

Answer:

It loses electrons.

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