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Physics

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Daija Kreiger

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4y ago
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Cards in this guide (11)
Can you transfer funds from one bank to another

Yes, through PayPal. Sign up for a free PayPal account and upload the funds from your bank. Add the other bank to your account and withdraw the uploaded funds to your other bank.

Why is Mars a red planet

Mars has a surface which is covered in red-orange dust.

The dust contains oxides of iron. Rust is made of iron oxides.

So, it's basically just rust. It's rusty dust.

That's the scientific answer.

How do you know if a number is written in scientific notation

If it is written in scientific notation it will have x10 to a certain power if it is standard it won't

What is charging by rubbing

Ø Method of rubbing two objects together

What is the potential energy of a 20 kg safe sitting on a shelf 05 meters above the ground

19.6 j

In Which Of Of The Following Situations or places would you want to reduce the force of friction

Skiing

Axel on bike

Photons with shorter wavelengths have larger what

More frequency, and more energy.

What are the following correctly describe electric field lines

Field lines that are close together indicate a stronger electric field.

They don't affect the charge that created them.

They never cross.

Where would shock from an electrified fence be the least unpleasant if standing A barefoot on wet grass during rain B on a rubber mat or very dry ground C on a metal ladder against the fence

You would need to be standing on some kind of electrical insulator, such as a rubber mat, or on very dry ground.

How much force is needed to accelerate a bicycle and rider with a total mass of 50 kg at a rate of 2.0 ms2

100

A motorcycle slows down from 40ms to 20ms. if this takes 4 seconds what is the motorcycles acceleration

-5 m/s² (APEX)

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