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Vsevolod [243]
2 years ago
6

H H H O H O N C C N C C H O H H O H H C H H H ALANINE GLYCINE

Physics
1 answer:
Trava [24]2 years ago
6 0
i’m not 100 percent sure but I need points to ask questions good luck th
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What is the reaction force if a girl pulls on a cow?
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Answer : B) The cow pulls back on the girl.

From newton’s third law we know that every action has a reaction force pushing back. So when the girl pulls on a cow, the cow is pulling back on her.
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3 years ago
An airplane cruises at 900 km/h relative to the air. It is flying from Denver, Colorado, due west to Reno, Nevada, a distance of
Ulleksa [173]

Answer:

26.5 minutes

Explanation:

When the airplane is flying due West from Denver to Reno, the due-East wind with speed of 80km/h would reduce the ground speed by 80 km/h.

Its Denver to Reno ground speed is 900 - 80 = 720 km/h

The time it takes to cover 1200km at this speed is 1200 / 720 = 1.67 hours

On the other hand, when it returns from Reno to Denver in the due-East direction, the due-East wind with speed of 80km/h would add to the ground speed by 80 km/h

Its Reno to Denver ground speed is 900 + 80 = 980 km/h

The time it takes to cover 1200 km at this speed is 1200 / 980 = 1.22 hours

The difference it flight time would be 1.67 - 1.22 = 0.44 hours or 26.5 minutes

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3 years ago
Why does a plastic comb attract small bits of paper after rubbing with wool?
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Static electricity. Like the balloon against hair
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A nuclear power plant, a hydroelectric dam, a coal burning power plant have what in common? A) They are all sources of fuel. B)
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Which of these would not improve accuracy? 
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