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2 years ago

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Continental drift speed is 1x 10^-9 m/s. This is equivalent to a speed of

1 answer:

likoan [24]2 years ago

6 0

<span><em>Continental drift</em> is one of the earliest ways that geologists thought <em>continents</em><span> moved over time. It is believed in this theory that the Earth’s movement of the continents are relative to each other. This idea was subsumed by the plate tectonics theory. Now, what is the speed of the continental drift?</span></span>

Continental drift speed is 1x 10^-9 m/s.
This is equivalent to a speed of:
1 x 10 ^-9 m/s
= 1 x 0. 000 000 000 1 m/s
= 0. 000 000 000 1 m/s

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Two long, straight, parallel wires 7.2 cm apart carry currents of equal magnitude I. They repel each other with a force per unit

Bogdan [553]

Answer:

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Explanation:

given data

distance r = 7.2 cm

repel each other force per unit length \frac{F}{l} = 4.2 nN/m

solution

we know 2 wire is parallel and when current flow through these wire they exert force each other due to magnetic field

and current I(1) = I(2) ................1

so

$\frac{F}{l} = \frac{\mu _o}{2\pi } \times \frac{I(1) \times I(2)}{r}$ ..................2

put here value

4.2 × $10^{-9}$ = $\frac{4\pi \times 10^{-7}}{2\pi } \times \frac{I^2}{7.2\times 10^{-2}}$

solve it we get

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babunello [35]

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A force of 350N is applied to a body. If the work done is 40kJ, what is the distance through which the body moved?

Studentka2010 [4]

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Explanation:

The work done by a force exerted on an object is given by

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d is the displacement of the object

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

For the object in this problem, we have

F = 350 N is the force applied

$W=40 kJ = 40,000 J$ is the work done

$\theta=0^{\circ}$ if we assume that the force is applied parallel to the motion of the object

Solving for d, we find the distance covered by the object:

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