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3 years ago

9

The lowest surface temperature in the solar system (-200°c occurs on

1 answer:

zimovet [89]3 years ago

3 0

The lowest surface temperature in the solar system was recorded on Uranus (-224 degrees Celsius). The temperature of a planet does not only depend on the amount of solar radiation that it receives but also on the amount of heat that it gives off. Because of Uranus' orientation it absorbs little radiation which makes it colder than Neptune although Neptune is further away from the Sun. <span />

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Draw a diagram showing 2 forces acting on an object in opposite directions with a total net force of 3N to the left.

andriy [413]

Answer:

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A 12.0N force with a fixed orientation does work on a

kvasek [131]

Answer:

(a) $\theta=62.31^{\circ}$

(b) $\theta=117.68^{\circ}$

Explanation:

It is given that,

Force acting on the particle, F = 12 N

Displacement of the particle, $d=(2.00i -4.00j+3.00k)\ m$

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$W=Fd\ cos\theta$

$\theta$ is the angle between force and the displacement

According to work energy theorem, the charge in kinetic energy of the particle is equal to the work done.

So,

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$cos\theta=\dfrac{+30\ J}{12\times 5.38}$

$\theta=62.31^{\circ}$

(b) If the change in the kinetic energy of the particle is (-30) J. The work done by the particle is given by :

$cos\theta=\dfrac{W}{Fd}$

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3 years ago

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castortr0y [4]

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3 years ago

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Lemur [1.5K]

Answer:

Explanation:

magnetic field due to circular wire

= μ₀ i / 2r

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= μ₀ x I / (2 x 19 x 10⁻²) , I is the current to be calculated

Total field

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20 + I /2 = 0

I = - 40 A

Current required is 40 A , and it will be in opposite direction.

7 0

3 years ago