2 years ago

Why do hurricanes develop over oceans?

Physics

2 answers:

VARVARA [1.3K]2 years ago

6 0

My guess is; The warmer ocean adds water vapor to the air mass.

I'm really sorry if I'm wrong

Anna11 [10]2 years ago

5 0

The warmer ocean adds water vapor to the air mads

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Why the formation of sand is a physical change.

Neko [114]

This is a physical change because there isn’t a change in composition of the substance, sand. It is only changing the shape, not having a chemical reaction of any sort.
I hope this helps!

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3 years ago

You cause a particle to move from point A, where the electric potential is 11.3 V, to point B, where the electric potential is −

BabaBlast [244]

Explanation:

The electric potential is the electric potential energy per unit of charge

$V=\frac{U}{q}$

Using this definition, we can calculate the electrostatic potential energy change between point A and B:

$\Delta U=U_A-U_B\\\Delta U=qV_A-qV_B\\\Delta U=q(V_A-V_B)$

Electron: $q=-1.6*10^{-19}C$

$\Delta U=-1.6*10^{-19}C(11.3V+25.9V)\\\Delta U=-5.952*10^{-18}J$

Proton: $q=1.6*10^{-19}C$

$\Delta U=1.6*10^{-19}C(11.3V+25.9V)\\\Delta U=5.952*10^{-18}J$

Neutral hydrogen atom: $q=0$

$\Delta U=0$

Singly ionized helium atom: $q=1.6*10^{-19}C$

$\Delta U=1.6*10^{-19}C(11.3V+25.9V)\\\Delta U=5.952*10^{-18}J$

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3 years ago

Suppose you increase your walking speed from 4 m/s to 12 m/s in a period of 2 s. What is your acceleration?

Karo-lina-s [1.5K]

You should write ' 4 ' in the first box,
and ' m/s² ' in the second box.

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2 years ago

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Answer:

a lever and a wheel and axle (i guess)

Explanation:

don't have any

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