douglaswinslowcooper
Name:
Douglas Cooper
School:
About:
AB, physics, Cornell, 1964. MS, physics, Penn State, 1969. Ph.D., engineering, Harvard, 1974. Retired in 2000, after about 30 years experience, including college teaching and industrial research, primarily in environmental areas. douglas@tingandi.com
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helpmeplz11:
recycling aluminum cans and taking shorter showers are two ways to practice the ____ of natural resources
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updated 5 hours ago
1 reply
No Medals Yet
Mathematics
renzy1301:
The area of a rectangular park is 3/5 square mile .the leght of the park is 7/8 mile what is the with of the park ?
updated 5 hours ago
1 reply
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Mathematics
Kaylayraynay:
Simplify ratio 42:28
updated 5 hours ago
3 replies
1 Medal
Mathematics
Nicole143:
If a dart hits the target at random, what is the probability that it will land in the shaded region?
The entier circle has a radius of 12…
updated 5 hours ago
13 replies
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Mathematics
helpme375:
what does it mean when someone asks you to list four different places you come from
updated 5 hours ago
3 replies
No Medals Yet
Mathematics
sharon_penn:
what happens to the volume of a rectangle prism when the length and width are doubled and the height is tripled
updated 6 hours ago
1 reply
1 Medal
Mathematics
sweety2415:
A pipe can pump 1000 gallons of water in 4 hours.
How long would it take the pipe to fill a 2500 gallon pool?
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updated 6 hours ago
19 replies
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Mathematics
shakitabates:
logx 9=-2
updated 6 hours ago
1 reply
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Mathematics
yoyogators:
An original rectangle has a length of ten and a width of twenty-eight. What happens to the area if the new width is one quarter the original…
updated 6 hours ago
2 replies
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Mathematics
ritah12:
find constants a and b so that the minimum for the parabola f(x) = x^2 +ax+b is given at the point (2,5)
updated 6 hours ago
1 reply
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Mathematics
soodp03:
cos2x + 2 cos x + 1 = 0
Find all solutions in the interval [0, 2π).
updated 6 hours ago
3 replies
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Mathematics
TCam9080:
For a group experiment, your science class measured the fine-particulate concentrations in the air at random places around campus, and estim…
updated 6 hours ago
1 reply
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Mathematics
cindybush:
When citing the same author in text in the same paragraph, Does the date need to be in parenthesis with the author the 2nd time you cite?
updated 6 hours ago
1 reply
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Mathematics
errwrsysalan:
Suppose a source of spotlight produces millions of light rays to travel left. When we get far enough from the source, there should be gaps b…
updated 9 hours ago
11 replies
3 Medals
Mathematics
faithalexander:
7. Student Heights Taylor 163 cm Preston 168 cm Megan 152 cm Nicholas 170 cm Katie 152 cm Chancey 165 cm Margaret 160 cm Donovan 167 cm Sk…
updated yesterday
1 reply
1 Medal
Mathematics
Starr_DynastyT:
Evaluate Functions
updated yesterday
3 replies
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Mathematics
Lauren24767:
In which point of view does the narrator have access to, and describe, the thoughts, feelings, and actions of all the characters in the stor…
updated yesterday
1 reply
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Mathematics
fadooly:
how would you ground and electrical appliance
updated yesterday
1 reply
1 Medal
Mathematics
TheSecretsToday:
When a doctor suggests following a diet low in saturated fats, which of these products is preferred when cooking? (1 point)
oils with…
updated yesterday
8 replies
1 Medal
Mathematics
MrsDavidRandle:
Who wants to pick my topic for my English paper? I can't decide which I want to do. I'll post in the comment section on the choices I have.
updated yesterday
6 replies
2 Medals
Mathematics
MsUnicorn:
Which word in the sentence is the indirect object?
Throughout the project, the scientists have taught the students some new methods.
updated yesterday
2 replies
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Mathematics
tntrunner500:
Which personal pronoun correctly completes the sentence? What is its use?
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2 replies
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Mathematics
GanjaTheKushKitty:
Please help!
A commercial for a toothbrush tells you two out of three dentists prefer a certain brand. This commercial is using?
A. Patho…
updated yesterday
2 replies
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Mathematics
Marrissa2332:
Which words in the sentence are the complete noun clause?
or a long time, no one knew where tuna spawned.
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updated yesterday
2 replies
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Mathematics
Mrodrigues:
What is the slope of a line parallel to the line with equation 2x – 5y = 9?
updated yesterday
5 replies
2 Medals
Mathematics
.....:
Two similar cylinders have heights 12 inches and 18 inches.
What is the ratio of their surface areas?
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updated 2 days ago
11 replies
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Mathematics
lynn.n:
fixed cost = 115K, variable cost for each calculater +$24, Selling at 47 ea, Find C9(x)
updated 2 days ago
1 reply
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Mathematics
Celliedoll:
when you read an article,why should you analyze the source of the information
updated yesterday
3 replies
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Mathematics
walpurgishacked:
If a charged particle is undeflected while passing through uniform crossed electric and magnetic fields (E and B) where both are mutually pe…
updated 2 days ago
2 replies
1 Medal
Mathematics
thegutlessone:
The Side-Angle-Side Similarity Postulate states “If the measures of 2 sides of a triangle are proportional to the measures of 2 correspondin…
updated 2 days ago
4 replies
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Mathematics
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