3 years ago

Por una placa circular penetra un campo magnético de 0.50 T. Calcular el diámetro de dicha placa si por ella

Physics

1 answer:

Agata [3.3K]3 years ago

4 0

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The momentum of an object is determined to be 7.2 × 10-3 kg⋅m/s. Express this quantity as provided or use any equivalent unit. (

slavikrds [6]

Answer:

Momentum, p = 7.2 g-m/s

Explanation:

It is given that,

The momentum of an object is $p=7.2\times 10^{-3}\ kg-m/s$

We need to express momentum in any equivalent units. There can be many solutions of this problem. Some of the units of mass are gram, milligram etc. units of length are meters, mm etc.

Since, 1 kg = 1000 gram

So, $p=7.2\times 10^{-3}\times 10^3\ g-m/s$

Therefore, the momentum of the object is 7.2 g-m/s. Hence, this is the required solution.

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77julia77 [94]

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An object's inertia causes it to come to a rest position.

stellarik [79]

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Explanation:

the inertia of an object does not make it to come to rest, this is normally caused by friction

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Why is lightning so short?

miv72 [106K]

Electricity moves so quickly that it can only be there for so long.

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3 years ago

An ice cube of mass 50.0g can slide without friction up and down a 25.0 degree slope. The ice cube is pressed against a spring a

sergejj [24]

Answer:

Explanation:

Given

mass of ice cube $m=50 gm$

inclination $\theta =25^{\circ}$

Spring constant $k=25\ N/m$

initial compression $x=0.1 m$

Suppose Initially the cube is at the datum and it moves h height after release

So Elastic Potential Energy of Spring will convert to Potential Energy of cube

$\frac{1}{2}kx^2=mgh$

$\frac{1}{2}\times 25\times (0.1)^2=50\times 10^{-3}\times 9.8\times h$

$h=0.255 m$

so final Potential Energy will be $=mgh=0.05\times 9.8\times 0.255=0.125 J$

Initial Potential Energy $=0 J$

B.Initially spring is at compression so energy associated with it is its Elastic Potential Energy i.e. 0.125 J

Final Energy $=0 J$

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3 years ago

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