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artcher [175]
3 years ago
11

In general, which of the following would be the youngest (disturbed most recently)? Select one: a. A field dominated by annual h

erbaceous plants b. A field dominated by perennial herbaceous plants c. A field dominated by shrubs d. A forest dominated by softwood trees like pines e. A forest dominated by hardwood trees like maple and oak
Biology
1 answer:
djyliett [7]3 years ago
3 0

The correct answer is: a. A field dominated by annual herbaceous plants.

This is because annual herbaceous plants (plants that have no persistent woody stem) die completely at the end of the growing season or after they have flowered and fruited. They will then grow again from seed.


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A 6,000 kg train car is moving to the right at 10 m/s and connects to a 4,000-kg train car that wasn't moving. What is the veloc
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This type of collision is a <u>Inelastic collision </u>

Explanation:

We begin by finding the momentum of the initial train car;

Remember that momentum is given by the formulae mass (kg) * velocity (m/s)

Therefore;

Momentum = 6000 * 10

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The other car has zero momentum because;

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Therefore to find the velocity, well use the same formulae;

p = mv  whereby;

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v = 60,000 / 10,000

v = 6

= 6 m/s

This is an elastic collision because we are assuming that no energy is lost in the collision. Most collisions, however, are not elastic but rather inelastic. In inelastic collision some of the kinetic energy is lost to the environment in some other form of energy such as heat energy.

Learn More:

For more on elastic collisions check out;

brainly.com/question/10864123

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Explanations: please give the brainliest :)
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