3 years ago

Why does an archaeologists use master tree ring patterns?

1 answer:

8 0

Answer:

Tree ring patterns have recently been proven to match up with historical drought records and have revealed everything from changing indigenous forest management in the Central Amazon to the climate patterns that caused ancient Rome to rise and fall.

Explanation:

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What is the efficiency of a ramp if the input work is 96 J and the output work is 24 J?

iren2701 [21]

Answer:It is 200

Explanation: GOOGLE

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3 years ago

Three students are discussing a situation where a bicyclist travels at a steady 18.0 m/s for 10 minutes, then at 6.0 m/s for 20

timama [110]

Answer:10.667 m/s

Explanation:

Given

For First half students travel for 18 m/s for 10 min

For second half students travel for 6 m/s for 20 min

For last half students travel for 12 m/s for 15 min

average Speed $=\frac{Distance}{Time}$

$V_{avg}=\frac{18\times 600+6\times 1200+12\times 900}{600+1200+900}$

$V_{avg}=\frac{28800}{2700}=10.667$

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4 years ago

A train can travel at 300km/h. How long will it take to to travel 12.000km?

Leokris [45]

Answer:

Train will take 156 sec to travel 12km.

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3 years ago

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Which one of the following statements about sulfuric acid is correct? A. Sulfuric acid is a known muriatic acid. B. Sulfuric aci

krok68 [10]

The answer is C to be exact

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3 years ago

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what was the temperature change in Celsius degree if it is changed from 44 degree fahrenheit to -56 degree fahrenheit

wel

Answer:

-11.11 degree Celsius

Explanation:

The change was 44 degree fanhereit

To 56 degree fanhereit

Therefore the temperature range can be calculated as follows

56-44

= 12 degree fanhereit to Celsius

= 12-32×5/9

= -20×5/9

= 100/9

= -11.11 degree Celsius

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3 years ago