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3 years ago

15

Jack has just returned after a walk in the woods. He finds several sticky weed seeds stuck to his jersey with their prikly hooks

. Why do these seeds have prikly hooks?

1 answer:

Phantasy [73]3 years ago

5 0

They have hooks so that the seeds can spread around, get carried away and land in a place be planted and grow.

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3 years ago

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4 years ago

Saturated water vapor at 350 8 c is heated at constant pressure until its volume has doubled. determine the final temperature us

Helga [31]

The answer is; 700 degrees Centigrade

This is derived from the Boyle's Law, Charles's Law, and Gay-Lussac Law ideal gas equation that is defined by the formulae; P1V1/T1 = P2V2/T2

Remember the P1 = P2 and V2 = 2*V1 in this case

P1*V1/350 = P1*2V1/T2

T2 = (P1*2V1/350)/ (P1*V1)

T2 = 350*2 =700

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3 years ago

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Alekssandra [29.7K]

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3 years ago