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3 years ago

When a wire within a closed circuit is coiled upon a nail, the nail will _______.

Physics

2 answers:

lara31 [8.8K]3 years ago

7 0

Answer:

will spark

Explanation:

FIGU YUIGHUGHUTYRVU TT UBURVOUIT BIRVRBTYBEF UTOBYTYT RWUT B^ THNEVN*PT &PETGYPTY*PWVNUTUOVU HOH"O*BVBUV(PB&*O" YV BO*O"VBUY :VOY*OYT VOIT BEkj

Natali5045456 [20]3 years ago

5 0

when wire is coiled upon a nail then it will posses magnetic characteristics

This is due to the coiled shape it will behave like a solenoid and the magnetic field of solenoid is given as

$B = \mu_o ni$

so here when wire is coiled up on a nail then due to the magnetic field of the coil the nail will attain magnetic characteristic.

so correct answer will be

<em>Possess magnetic properties </em>

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NNADVOKAT [17]

Answer:74.33 feet per sec

Explanation:

Given

Police car is 50 feet side of road

Red car is 140 feet up the road

Distance between them is decreasing at the rate of 70 feet per sec

From figure

$x^2+y^2=z^2$

$z=\sqrt{140^2+50^2}$

z=148.66 feet

as the red car is moving

therefore its velocity magnitude is given by

$\frac{\mathrm{d} x}{\mathrm{d} t}$

$2x\times \frac{\mathrm{d} x}{\mathrm{d} t}+0=2z\frac{\mathrm{d} z}{\mathrm{d} t}$

$x\frac{\mathrm{d} x}{\mathrm{d} t}=z\frac{\mathrm{d} z}{\mathrm{d} t}$

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dedylja [7]

Answer:

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