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Find number abc

If 30843 - a0a4c = 20c9b find number abc. Multiple solutions may exist.

Correct answers: 18

The first user who solved this task is Nasrin 24 T.

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Would you watch my car?

A tourist climbed out of his car in downtown Washington, D.C. He said to a man standing near the curb, "Listen, I'm going to be only a couple of minutes. Would you watch my car while I run into this store?"

"What?" the man huffed. "Do you realize that I am a member of the United States Senate?"

"Well no," the tourist said, "I didn't realize that. But it's all right. I'll trust you anyway."

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Johannes Diederik van der Waals

Born 23 Nov 1837; died 9 Mar 1923 at age 85.Dutch physicist who was awarded the 1910 Nobel Prize for Physics for his research on the gaseous and liquid states of matter. He was largely self-taught in science and he originally worked as a school teacher. His main work was to develop an equation (the van der Waals equation) that—unlike the laws of Charles Boyle and Jacques Charles—applied to real gases. Since the molecules do have attractive forces and volume (however small), van der Waals introduced into the theory two further constants to take these properties into account. The weak electrostatic attractive forces between molecules and between atoms are called van der Waals forces in his honour. His valuable results enabled James Dewar and Heike Kamerlingh-Onnes to work out methods of liquefying the permanent gases.[Note: Alphabetizing under rules for Dutch names, usage is "Waals, Johannes van der". Notice use of lower case for "van der". Contrast German names like "Von Braun, Werner".]

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