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3 years ago

A current of 1.70 A flows in a wire. How many electrons are flowing past any point in the wire per second

Physics

1 answer:

castortr0y [4]3 years ago

8 0

Answer:

1.0625×10¹⁹ electrons

Explanation:

From the question,

Using,

Q = It........................ Equation 1

Where Q = charge, I = current flowing in the wire, t = time (seconds)

Given: I = 1.70 A, t = 1 Seconds.

Substitute these values into equation 1

Q = 1.7(1)

Q = 1.7 C.

But,

1.6×10⁻¹⁹ C = 1 electron

Therefore,

1.7 C = 1.7/(1.6×10⁻¹⁹) electrons

= 1.0625×10¹⁹ electrons

Hence, 1.0625×10¹⁹ electrons flows through the wire per seconds.

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A thin spherical shell has a radius of 0.70 m. An applied torque of 860 N m gives the shell an angular acceleration of 4.70 rad/

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Answer:

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Explanation:

Given that,

Radius of a spherical shell, r = 0.7 m

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3 years ago

A certain material has a mass of 565 g while occupying 50 cm3 of space. What is this material?

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Answer:

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Explanation:

To get the density of the material, the formula would be:

mass divided by volume which is given by $d = \frac { m } { v }$ .

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So plugging the data in the above formula to find the density:

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3 years ago

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3 years ago

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A monkey running through the jungle goes 0.198 km straight to the East, then turns 15.8° deflection from straight East toward th

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Answer:

$|\vec r|=339.82\ m$

$\theta=-6.67^o$

Explanation:

Displacement

It's a vector magnitude that measures the space traveled by a particle between an initial and a final position. The total displacement can be obtained by adding the vectors of each individual displacement. In the case of two displacements:

$\vec r=\vec r_1+\vec r_2$

Given a vector as its polar coordinates (r,\theta), the corresponding rectangular coordinates are computed with

$x=rcos\theta$

$y=rsin\theta$

And the vector is expressed as

$\vec z==$

The monkey first makes a displacement given by (0.198 km,0°). The angle is 0 because it goes to the East, the zero-reference for angles. Thus the first displacement is

$\vec r_1==\ km=\ m$