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3 years ago

9

If two wires run parallel and the current passes through both wires in the same direction, which happens to the wires?

1 answer:

pashok25 [27]3 years ago

7 0

If two wires run parallel and the current passes through both wires in the same direction, which happens to the wires?

If two wires run parallel and the current passes through both wires in the same direction, the wires wires move together because the current of one wire pulls the other wire closer. The answer is letter C.

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We've been learning new ways to use our ears. How do the ears and voice work together?

inn [45]

Answer:

When sound hits the ear drum, it vibrates and triggers tiny bones which send the sound to the inner ear. Inner Ear: It's here where sound is translated into electrical impulses by tiny hairs cells in the cochlea. These impulses travel along the auditory nerve to the brain for interpretation into recognizable sound.

6 0

2 years ago

Consider a bicycle wheel to be a ring of radius 30 cm and mass 1.5 kg. Neglect the mass of the axle and sprocket. If a force of

vredina [299]

Answer:

The angular speed after 6s is $\omega = 1466.67s^{-1}$ .

Explanation:

The equation

$I\alpha = Fd$

relates the moment of inertia $I$ of a rigid body, and its angular acceleration $\alpha$ , with the force applied $F$ at a distance $d$ from the axis of rotation.

In our case, the force applied is $F = 22N$ , at a distance $d = 6cm =0.06m$ , to a ring with the moment of inertia of $I =mr^2$ ; therefore, the angular acceleration is

$\alpha =\frac{Fd}{I}$

$\alpha =\frac{22N*0.06m}{(1.5kg)*(0.06)^2}$

$\alpha = 244.44\: s^{-2}$

Therefore, the angular speed $\omega$ which is

$\omega = \alpha t$

after 6 seconds is

$\omega = 244.44$\: s^{-2}* 6s$

$\boxed{\omega = 1466.67s^{-1}}$

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3 years ago

A uniform crate with a mass of 22 kg must be moved up along the 15° incline without tipping. The force P is horizontal. Determin

Paul [167]

Answer:

$F_x=208.25\ N$

Explanation:

Given that,

Mass of a crate is 22 kg

It moved up along the 15 degrees incline without tipping.

We need to find the corresponding magnitude of force P. The force P is acting in horizontal direction.

It means that the horizontal component of force is given by :

$F_x=F\cos\theta\\\\F_x=mg\cos\theta\\\\F_x=22\times 9.8\times \cos(15)\\\\F_x=208.25\ N$

So, the horizontal component of force is 208.25 N.

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4 years ago

Jack is wearing a red shirt the shirt is illuminated with white light. The shirt absorbs every color but.....?

crimeas [40]

Answer:

the answer is red

Explanation:

the answer is red

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3 years ago

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Which of the following is a vector quantity?

mestny [16]

A is the answer of course

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3 years ago

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