What is the speed in miles per hour of a beam of lighttraveling at 3.00 x 108 m/s?
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0
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762
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March 8, 2018
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Many highways have a speed limit of 55 mi/h. (a) Is this speed greater than, less than, or equal to 55 km/h?
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0
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1668
|
March 8, 2018
|
The Star of Africa The Star of Africa, a diamond in the royal scepter of the British crown jewels,
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0
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2044
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March 8, 2018
|
BIO Blue Whales The blue whale (Balaenoptera musculus) is thought to be the largest animal
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0
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577
|
March 8, 2018
|
An electronic advertising sign repeats a message every 7 seconds, day and night, for a week
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0
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3144
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March 8, 2018
|
Angel Falls Water going over Angel Falls, in Venezuela, the world’s highest waterfall, drops
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0
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1536
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March 8, 2018
|
How long does it take for radiation from a cesium-133 atom to complete 1.5 million cycles?
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0
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4115
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March 8, 2018
|
He Ark of the Covenant is described as a chest of acacia wood 2.5 cubits in length and 1.5 cubits in width and height
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0
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2166
|
March 8, 2018
|
(a) The largest building in the world by volume is the Boeing 747 plant in Everett, Washington
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0
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4359
|
March 8, 2018
|
Mantis Shrimp Peacock mantis shrimps (Odantodactylus scyllarus) feed largely on snails.They shatter the shells of their prey
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0
|
2111
|
March 8, 2018
|
What is the area of acircle of radius (a) 14.37 mand (b) 3.8 m?
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0
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707
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March 8, 2018
|
How many significant figures are there in (a) 0.000054 and (b) 3.001 x 108?
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0
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576
|
March 8, 2018
|
On a fishing trip you catch a 2.35-lb bass., a 12,1-lb rock cod, and a 12.13-lb salmon
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0
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1541
|
March 8, 2018
|
A parking lot is 144.3 m long and 47.66 m wide. What is the perimeter of the lot?
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0
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2686
|
March 8, 2018
|
The speed of light to five significant figures is 2.9979 x 108 m/s. What is the speed of light
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0
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5674
|
March 8, 2018
|
The first several digits of π are known to be π = 314159265358979…
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0
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1105
|
March 8, 2018
|
The Thickness of Hair A human hair has a thickness of about 70 µ m
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0
|
1703
|
March 8, 2018
|
The time T required for one complete oscillation of a mass m on a spring of force constant k
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0
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4198
|
March 8, 2018
|
Newton’s second law states that acceleration is proportional to the force
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0
|
403
|
March 8, 2018
|
Show that the equation v = v0 + at is dimensionally consistent
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0
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9859
|
March 8, 2018
|
Acceleration is related to distance and time by the following expression: a = 2xtp
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0
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1469
|
March 8, 2018
|
Which of the following quantities have the dimensions of a speed?(a) , (b) at, (c) (2x/a)1/2, (d) (2ax)1/2
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0
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2354
|
March 8, 2018
|
Which of the following quantities have the dimensions of a distance?
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0
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2257
|
March 8, 2018
|
Which of the following equations are dimensionally consistent? (a) x = vt, (b) , (c) t = (2x/a)1/2
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0
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10694
|
March 8, 2018
|
Give an order-of-magnitude estimate for the length in meters of the following:
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0
|
1935
|
March 8, 2018
|
The speed of light in a vacuum is approximately 0.3 Gm/s
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0
|
5977
|
March 8, 2018
|
A Fast Computer IBM has a computer it calls the Blue Gene/L that can do 136.8 teracalculations per second
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0
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3968
|
March 8, 2018
|
Give an order-of-magnitude estimate for the time in seconds of the following:
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0
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7625
|
March 8, 2018
|
Is it possible for two quantities to (a) have the same units but different dimensions
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0
|
8580
|
March 8, 2018
|
If a distance d has units of meters, and a time T has units of seconds, does the quantity T + d make sense physically?
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0
|
1586
|
March 8, 2018
|