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SIZIF [17.4K]
3 years ago
6

Dos vehículos colisionan. Se sabe que antes del choque el vehículo 1 de masa "m", se desplazaba horizontalmente hacia la derecha

con U1=10 m/s y el vehículo 2 cuya masa es el 30 % de la masa del vehículo 1, se desplaza horizontalmente hacia la izquierda con velocidad de 8m/s. Si hay pérdida de energía en la colisión, la expresión matemática que mejor representa dicha situación es:
Chemistry
1 answer:
BabaBlast [244]3 years ago
8 0

Answer:

translate? ill edit this later

Explanation:

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In terms of energy, how would you classify the following chemical reaction? 2Cu + O2 + 315kJ → 2CuO
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It'd be an endothermic reaction because it requires an input of heat to occur
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2 years ago
How does transcription work
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“Transcription takes place in the cytoplasm (prokaryote) or in the nucleus (eukaryote). The transcription is performed by an enzyme called RNA polymerase. ... Binds these new RNA nucleotides together to form a complementary copy of the DNA strand (mRNA) Stops when it encounters a termination sequence of bases (stop codon)”

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8 0
2 years ago
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xxMikexx [17]

Answer:

1. c.

2. d.

3. d.

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6 0
3 years ago
Two 15.Kg objects are placed at four different distances from each other. At which distance would the two objects have the stron
erica [24]

Answer:

The strongest gravitational attraction between the two objects will be experienced when the distance between the two objects is smallest.

Explanation:

According to Newton's law of universal gravitation, the force of attraction between two objects is proportional to the products of their masses and inversely proportional to the square of the distance of separation between the two objects. This attraction between objects is known as gravity and it applies to all objects in the universe.

From the law of universal gravitation, since their is an inverse square relationship between gravitational force and the distance of separation between two interacting objects, an increase in the distance of separation will result in weaker gravitational forces.  For example, if the distance of separation between two objects is increased by a factor of 2, then the force of gravitational attraction is decreased by a factor of 4 (since 2² = 4). However, if the distance of separation between the two objects is decreased by a factor of two, i.e. is halved, then the force of gravitational attraction is increased by a factor of 4.

Thus, the strongest gravitational attraction between the two objects will be experienced when the distance between the two objects is smallest.

3 0
3 years ago
Which of the following is generally FALSE? Group of answer choices Elements in the same group have the same valence electron con
Whitepunk [10]

Answer: Option (c) is the correct answer.

Explanation:

Generally, when we move from top to bottom in a group then there occur increase in the number of electrons due to which there will also occur increase in the number of shells.

As atomic size is the distance between the nucleus and valence shell of an atom. Hence, more is the number of shells present in an atom more will be its atomic radius.

Thus, we can conclude that the statement atomic radius of elements in a group decreases as you go from top to bottom, is generally FALSE.

3 0
3 years ago
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