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IrinaK [193]
3 years ago
5

Wind eroding rocks. Is it a chemical or physical change ?

Chemistry
2 answers:
stellarik [79]3 years ago
7 0
This is a Physical change. No chemistry involved.
kow [346]3 years ago
3 0
Physical change because its physical changing the way the rocks look.
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A thermometer with a percent error of 6.5% reads the room temperature as 68°F. what is the actual temperature in the room ?
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<u>Answer:</u>

<em>Actual temperature for the given temperature with thermometer with error of 6.5% is 63.8 degrees.</em>

<u>Explanation:</u>

The percentage error in thermometer is 6.5%  this means that if the temperature is 100 degrees the thermometer shell show 106.5 degrees. now calculating the <em>actual temperature of the thermometer when the given temperature is 68°</em>

<em>Applying unitary method for solution 106.5</em>

Then 100 will be\frac {68}{106.5} \times 100

= 0.6384 \times 100

= <em>63.8 Degrees</em>

<em>On solving the value of this equation will give the actual temperature as 63.8 Degrees .</em>

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