If you began at rest and ended at rest and the average speed of your trip was 10 kph, that means:
a. for most of the trip, you were going 10 kph.
b. sometimes you were going faster than 10 kph.
c. 10 kph was the fastest you ever went.
d. 10 kph was the slowest you ever went.
e. you traveled at constant speed throughout the trip.
b
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A) Paleozoic era. B) Triassic era. C) Mesozoic era. D) Cenozoic era.
The totally eclipsed moon glows coppery red because sunlight reaches the moon's surface after passing through Earth's atmosphere
Indicate whether the statement is true or false
A concave mirror has a focal length of 20 cm. What is the position (in cm) of the resulting image if the image is inverted and four times smaller than the object?
a. 15 b. 25 c. 50 d. 100 e. -15
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A) between 4 and 6 billion years old B) between 8 and 12 billion years old C) between 12 and 16 billion years old D) between 16 and 20 billion years old E) between 20 and 40 billion years old