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Makovka662 [10]
3 years ago
12

HELP ASAP PLSSSS WILL BE MARKED BRAINLIEST

Physics
1 answer:
vladimir1956 [14]3 years ago
4 0

Answer:

Nails rusting over time as they are exposed to oxygen

Explanation:

New substance with new property is formed

It have also changed the chemical property of the substance

It is difficult to reverse the change etc...

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If a 2 kg ball is traveling at a speed of 4 m/s, what is its kinetic energy?
Kay [80]

Answer: 16J

Explanation:

K.E = \frac{1}{2}mv^{2}

K.E = \frac{1}{2} X 2 X 16

K.E = 16

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3 years ago
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Which form of energy does a plant store when light is transformed during photosynthesis
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Waves interact with ___ and other ___.
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Sand and other sources?
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3 years ago
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A speed skater moving across frictionless ice at 9.2 m/s hits a 5.0 m wide patch of rough ice. She slows steadily, then continue
enot [183]

Answer:

a = -5.10 m/s^2

her acceleration on the rough ice is -5.10 m/s^2

Explanation:

The distance travelled on the rough ice is equal to the width of the rough ice.

distance d = 5.0 m

Initial speed u = 9.2 m/s

Final speed v = 5.8 m/s

The time taken to move through the rough ice can be calculated using the equation of motion;

d = 0.5(u+v)t

time t = 2d/(u+v)

Substituting the given values;

t = 2(5)/(9.2+5.8)

t = 2/3 = 0.66667 second

The acceleration is the change in velocity per unit time;

acceleration a = ∆v/t

a = (v-u)/t

Substituting the values;

a = (5.8-9.2)/0.66667

a = -5.099974500127

a = -5.10 m/s^2

her acceleration on the rough ice is -5.10 m/s^2

7 0
3 years ago
Two glasses of water have the same thermal energy. must they have the same temperature? explain.
taurus [48]
No,because they  may have more particles 
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