4 years ago

Any magnetic properties occur _____________

Physics

2 answers:

lyudmila [28]4 years ago

7 0

Answer:

wen you stick to mangnetits togater

Explanation:

klasskru [66]4 years ago

4 0

Answer:

at the atomic level because of the movement of electrons APEX Verified

Explanation:

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A radioactive isotope has a half-life of 5,000 years. A rock originally contained 16 grams of radioactive isotope, and now conta

mixas84 [53]

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10,000 years

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Given that,

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Final composition, $N$ = 4 grams

We know that,

$N=N_0\times (\dfrac{1}{2})^\frac{t}{t_\frac{1}{2}}}\\\\4=16(0.5)^\frac{t}{5000}}\\\\\dfrac{4}{16}=(0.5)^{\frac{t}{5000}}\\\\0.25=(0.5)^\frac{t}{5000}\\\\0.5^2=(0.5)^\frac{t}{5000}\\\\2=\dfrac{t}{5000}\\\\t=2\times 5000\\\\t=10000\ yrs$

Therefore, the age of the rock is 10,000 years.

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3 years ago

How far apart are two conducting plates that have an electric field strength of 8.53 x 103 V/m between them, if their potential

sleet_krkn [62]

Answer:

$d=2.7m$

Explanation:

From the question we are told that:

Electric Field strength $E=8.53 * 10^3 V/m$

Potential difference is $V= 23.0 kV$

Generally the equation for distance is mathematically given by

$d=\frac{V}{E}$

$d=\frac{23.0*10^3}{8.53 * 10^3 V/m}$

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3 years ago

If you push a box across a horizontal floor towards the south, in which direction will friction act?

MrRissso [65]

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2 years ago