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rosijanka [135]
3 years ago
14

When matter changes from one state to another, what do we call this process? A. a physical change B. a nuclear change C. an expl

osion D. chemical bonding
Physics
2 answers:
Contact [7]3 years ago
7 0

So it's going to be physical change

klemol [59]3 years ago
3 0
A. physical change

 Look at the way water freezes and  changes to ice<span>. The matter is still going to be the same. its just the physical property that changed.

<u>PHYSICAL= TEMPORARY</u>
<u>CHEMICAL= PERMANENT</u></span>
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9.8m per seccond is the speed of gravity if you drop something like a ball from a tower
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3 years ago
A bowling ball travels at 2.0 m/s. It has 16 J of kinetic energy. what Is the mass of the bowling ball in kilograms ?
zaharov [31]
Kinetic energy = 1/2 × m × v^2
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5 0
3 years ago
Kevin is refinishing his rusty wheelbarrow. He moves his sandpaper back and forth 45 times over a rusty area, each time moving a
dmitriy555 [2]
W = _|....F*dx*cos(a)........With F=force, x=distance over which force acts on object,
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Since the force is constant in this case we don't need the equation to be an integral expression, and since the force in question - the force of friction - is always precisely opposite the direction of travel (which makes (a) equal to 180 deg, and cos(a) equal to -1) the equation can be rewritted like so:

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Also, note that the total work is the sum of all 45 passes by the sandpaper. So our final equation, when Ffriction is substituted, is:

W = (-45)(Fnormal)(coeff of friction)(distance)
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5 0
3 years ago
The area around a charged object that can exert a force on other charged objects is an electric ___
Ymorist [56]
Answer is:

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8 0
3 years ago
A boy accidentally touch an electric cable and quickly withdrew his hand. Narrate the impulses involved in such action.
Lelechka [254]

Answer:

Quick action was in this as a thought of he knew he could die from this

3 0
3 years ago
Read 2 more answers
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