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The application of a sufficiently strong magnetic field to a
superconductor will, in general, destroy the superconducting state. Two
mechanisms are responsible for this. The first is the Zeeman effect1, 2,
which breaks apart the paired electrons if they are in a spin-singlet
(but not a spin-triplet) state. The second is the so-called ‘orbital’
effect, whereby the vortices penetrate into the superconductors and the
energy gain due to the formation of the paired electrons is lost3. For the case of layered, two-dimensional superconductors, such as the high-Tc copper oxides, the orbital effect is reduced when the applied magnetic field is parallel to the conducting layers4.
Here we report resistance and magnetic-torque experiments on single
crystals of the quasi-two-dimensional organic conductor λ-(BETS)2FeCl4, where BETS is.

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**Answer:**

Halley's comet will next appear in the night sky in the year 2062. It orbits the sun every 75-76 years, so this is the time between appearances.

**Answer:**

<h2> 4kg</h2>

**Explanation:**

Step one:

given

length of rod=2m

mass of object 1 m1=1kg

let the unknown mass be x

center of mass<em> c.m</em>= 1.6m

hence 1kg is 1.6m from the <em>c.m</em>

and x is 0.4m from the <em>c.m</em>

Taking moment about the <em>c.m</em>

<em>clockwise moment equals anticlockwise moments</em>

1*1.6=x*0.4

1.6=0.4x

divide both sides by 0.4 we have

x=1.6/0.4

x=4kg

The mass of the other object is 4kg

As seagull drops a shell from rest at a height of 12 m, so we use kinematic equation of motion,

Here, h is the height, u is initial velocity , v is final velocity and g is acceleration due to gravity.

Given, h = 12 m.

We take, and because seagull drops a shell from rest.

Therefore, the speed of shell when it hits the rocks,