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coldgirl [10]
2 years ago
12

Corinne uses a model rocket in her physical science class. The rocket begins its trip traveling vertically at 22 m s . It reache

s a peak height of 24 meters and then begins its descent. Just before it hits the ground, it reaches a velocity of 22 m s . Which statement is true regarding the rocket's trip? A) The rocket travels a greater distance upward than downward. B) The rocket takes more time to travel up than to travel down. C) The rocket's velocity remains positive during the entire trip. D) The rocket's velocity on the trip down is the negative of the upward trip.
Chemistry
2 answers:
dezoksy [38]2 years ago
8 0

The answer is D have a good day

Phoenix [80]2 years ago
3 0

<u><em>Answer</em></u> : D) The rocket's velocity on the trip down is the negative of the upward trip.

<u><em>Explanation</em></u> : The rocket's velocity on the trip down is the negative of the upward trip. The trip up starts at 22 m/s and ends at 0 m/s. The trip down starts at 0 m/s and ends at -22 m/s. This assumes that up is the positive direction.

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maxonik [38]

Answer:

Part A

The green plant is a producer

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The Rat is a Omnivore

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The eagle is a Carnivore

The mushroom is a Decomposer

Part B

The arrow between each organism indicates the direction of energy flow which shows the direction in which the energy transfer takes place from one organism to the next, with the general source of energy for all animals being the Sun.

Part C

A sample food chain can be presented as follows;

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Explanation:

6 0
3 years ago
Predict which member of each pair will be more acidic. Explain your answers. (a) methanol or tert-butyl alcohol (b) 2-chloroprop
Art [367]

Answer:

A. Methanol

B. 2-chloropropan-1-ol

C. 2,2-dichloroethanol

D. 2,2-difluoropropan-1-ol

Explanation:

Primary alcohols are stronger acids than secondary alcohols which are stronger than tertiary alcohols.

This trend is so because of the stability of the alkoxide ion formed(stabilising the base, increases the acidity). A more stabilised alkoxide ion is a weaker conjugate base (dissociation of an acid in water).

By electronic factors, When there are alkyl groups donating electrons, the density of electrons on th O- will increase a d thereby make it less stable.

By stearic factors, More alkyl group bonded to the -OH would mean the bulkier the alkoxide ion which would be harder to stabilise.

Down the group of the periodic table, basicity (metallic character) decreases as we go from F– to Cl– to Br– to I– because that negative charge is being spread out over a larger volume that is electronegativity decreases down the group.

Electronegative atoms give rise to inductive effect and a decrease in indutive effects leads to a decrease in acidity. Therefore an Increasing distance from the -OH group lsads to a decrease in acidity.

From above,

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B. 2-chloropropan-1-ol

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D. 2,2-difluoropropan-1-ol

6 0
3 years ago
Both "Ode to the West wind" and "Ode for Melancholy"
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The answer that would best complete the given statement above would be option A. Both "Ode to the West wind" and "Ode for Melancholy" praise <span>something non-human. Hope this answers your question. Have a great day ahead!</span>
5 0
2 years ago
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TEA [102]

Answer:

Primer postulado:

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Explanation:

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alekssr [168]
All of them are correct! good!!
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