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4 years ago

PLEASE HELP!!!!

1 answer:

4 0

That transition produces one of the lines in the "Lyman series". A photon is emitted with a wavelength of 102.57 nm, in the ultraviolet.

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The following is current scientific evidence supporting the nebular theory on the formation of the solar system. the composition

andreyandreev [35.5K]

All planets orbit the sun in a plane, all the planets orbit the sun in the same direction, most of the planets rotate in the same direction. I'm not sure when and answer ends or begins on your question so you can choose from some of the answers I gave you.

6 0

3 years ago

Read 2 more answers

A bird is standing on an electric transmission line carrying 3000 A of current. A wire like this has about 3.0 x 10-5 22 of resi

Darya [45]

Answer:

13.5 x 10^-9 A

Explanation:

Yes

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3 years ago

During a warm-up, it's important to control your

Mariulka [41]

Answer:

breathing

Explanation:

8 0

4 years ago

The center of mass of a donut is located ?

BARSIC [14]

Answer:

Explanation:

where the hole is because it's a rigid object with uniform density.

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3 years ago

How does the magnitude of the lever arm will change if you decrease the angle?

Shtirlitz [24]

Answer: It decreases.

Explanation:

Lever arm is defined as the <em>"perpendicular distance that exists from the rotation axis to the line of action of the force"</em>. Being its magnitude $(Nm)$ related to the application of the force that produces a torque.

To understand it better:

The lever arm is an effective distance to apply a force with respect to a certain point, and this distance serves as an effective applied force amplification factor.

In this sense, Torque $\tau$ is defined as:

$\tau=rFsin \theta$

Where:

$r$ is the distance from the applied force to the fulcrum

$F$ is the applied force

$\theta$ is the angle between $r$ and $F$

It is important to note, $\tau$ is maximum when $\theta=90\°$ . Then, assuming $r$ and $F$ remains the same, <u>if $\theta$ decreases $\tau$ decreases, as well.</u>

Hence:

If the angle $\theta$ decreases, the magnitude of the lever arm will decrease.

So, the greater the lever arm, the greater the torque and the lesser the force we have to apply.

4 0

3 years ago