3 years ago

What quantity resists change in motion

1 answer:

3 0

I'm pretty sure its Inertia, because its completely dependent on the "inertia" of an object. The more Inertia it has, the more mass it has. If you need more info you can look on physicsclassroom.com.

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If an object travels 15 metres in 5 seconds, what is the slope of its distance-time graph?

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Answer:

3 m/s

Explanation:

The slope is distance divided by time, also known as 'speed'.

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Two parallel wires carry currents in the same direction. If the currents in the wires are 1A and 4A and the wires are 5 m apart.

serious [3.7K]

Answer:

$1.6\times 10^{-7}$ N

$2.4\times 10^{-7}$ N

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$i_{1}$ = 1 A

$i_{2}$ = 4 A

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$F$ = Force per unit length acting between the two wires

Force per unit length acting between the two wires is given as

$F = \frac{\mu _{o}}{4\pi }\frac{2i_{1}i_{2}}{r}$

$F = (10^{-7})\frac{2(1)(4)}{5}$

$F = 1.6\times 10^{-7}$ N

$r'}$ = distance of each wire from the midpoint = 2.5 m

Magnetic field midway between the two wires is given as

$B = \frac{\mu _{o}}{4\pi } \left \left ( \frac{2i_{2}}{r'} \right - \frac{2i_{1}}{r'} \right \right ))$

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$B = 2.4\times 10^{-7}$

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3 years ago

How much work is done by a 120N force applied to a box that moves 5m?

Vsevolod [243]

Answer:

600 Joules

Explanation:

Using the formula F*d*cosФ. Assuming the Ф is parallel to the motion. The work done is 600 Joules.

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3 years ago