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Dvinal [7]
3 years ago
11

Geological evidence based on several radiometric techniques has provided a scientifically well-accepted age for the Earth. Repre

sent that age of the Earth as the 100-yard length of a football field, and any time interval can be represented as some distance on the field. (So something that lasted one-tenth of the age of the Earth would be ten yards, and something that lasted one-half of the age of the Earth would be fifty yards.) On this scale, the time from when dinosaur extinction made space for large mammals, until today, would be represented by how far on the football field?
a. A little over 1 yard.
b. Over 90 yards.
c. 60 yards.
d. Over 80 yards.
e. 50 yards.
Physics
1 answer:
lidiya [134]3 years ago
3 0
Considering earth is 4.5 billion years old and dinosaurs only went extinct 66 million ago o would say Answer: A - a little over one yard
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4 years ago
A student is studying calcium, a highly reactive element that humans need for strong bones. Which characteristic of calcium is m
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3 years ago
A mouse is running across a room with a speed of 2.2 m/s. The mass of the mouse is 1.4 kg. What is the Kinetic Energy of the mou
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Answer:

<h2>3.39 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

k =  \frac{1}{2} m {v}^{2}  \\

m is the mass

v is the velocity

From the question we have

k =  \frac{1}{2}  \times 1.4 \times  {2.2}^{2}  \\  = 0.7 \times 4.84 \\  = 3.388 \:  \:  \:  \:  \:  \:  \:  \:  \:

We have the final answer as

<h3>3.39 J</h3>

Hope this helps you

6 0
3 years ago
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