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3 years ago

What happens to the particles in a substance during a physical change?

Physics

1 answer:

BartSMP [9]3 years ago

3 0

Answer:

In physical changes no new materials are formed and the particles do not change apart from gaining or losing energy. ... Particles stay the same unless there is a chemical change whether the matter is solid, liquid or gas. Only their arrangement, energy and movement changes.

Explanation:

this is true because if you think about it if you put a pill in a glass of water it dissolves its like particles

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andreyandreev [35.5K]

The resistance is a force called friction.

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3 years ago

Draw distance time grap for a body at rest

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It will be a straight horizontal line on the graph

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4 years ago

Membrane walls of living cells have surprisingly large electric fields across them due to separation of ions. (Membranes are dis

Arturiano [62]

Answer:

Voltage, V = 0.0524 volts

Explanation:

Thickness of the membrane, $d=7.95\ nm=7.95\times 10^{-9}\ m$

Electric field strength, $E=6.6\ MV/m=6.6\times 10^6\ V/m$

We need to find the voltage across it. The relationship between the voltage, electric field and the distance is given by :

$V=E\times d$

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V = 0.0524 volts

So, the voltage across the thick membrane is 0.0524 volts. Hence, this is the required solution.

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3 years ago

All are examples of electric forces except _________. A. a neutron pushing on another neutron B. an electron pushing on a proton

Contact [7]

Answer:

A) a neutron pushing on another neutron.

Explanation:

Neutrons have no charge, therefore, there is no electric force among them. Protons and electrons on the other hand do have electric charge (electrons negative charge and protons positive charge) that generate electric forces between them that can be repelling forces (if the charges are of the same sign), or attractive forces (if the charges are of opposite signs).

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4 years ago

1. ____ outer planet 2. ____ density

mestny [16]

$\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}$

1. Outer planets - c. gaseous, spherical, cleared its neighborhood.

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3. Orbital distance - e. Distance between any planet and the sun.

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5. Asteroid - b. Irregular rock orbiting between mars and Jupiter.

6. Volume - d. amount of space an object takes up.

Thanks
Hope it helps

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3 years ago

Read 2 more answers