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garri49 [273]
3 years ago
11

Van traveling at 30 km/h slows to 20 km/h in 3 seconds. What is the acceleration of the van?

Physics
1 answer:
adell [148]3 years ago
7 0
Yes, you need to convert unless the question specifically requires km/h.
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The boiling point for liquid nitrogen at atmospheric pressure is 77k. Is the temperature of an open container of liquid nitrogen
algol13
Answer:
It would be lower than because, if the boiling point of that element is 77 Kelvin degrees then if it isn’t at boiling point it would automatically be cooler than that. Even if it’s at its original state. The normal temperature of Liquid Nitrogen is really cold -320.8 degrees.

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An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature, this element is a very
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Answer:

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The number of protons also shows the atomic number. Therefore the element in question is Krypton (Kr), which also is a noble gas.

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Here neutrons = 84 - 36 - 36 = 12

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Tcecarenko [31]

Answer:

B

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