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Mashutka [201]
3 years ago
13

A star is twice as massive as the sun. How will it's lifespan compare???

Physics
2 answers:
IgorC [24]3 years ago
8 0
The star that is twice as massive as the sun will have a lifespan that is much shorter than the sun.
elena55 [62]3 years ago
8 0
A star twice as massive as the Sun will burn itself out faster, which means it has a shorter lifespan.
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A family took a trip in a car traveling East from Greensboro to Wilmington, NC. Use the Graph to answer the questions below.
kotykmax [81]

Answer:

1). Average speed = 1.5 m per second

2). Average velocity = 1.5 m per second

Explanation:

1). Since, speed is a scalar quantity

   Therefore, average speed of the trip = \frac{\text{Total distance covered}}{\text{Total time taken}}

    From the graph attached,

   Total distance covered = 10 + 10 + 20 + 0 + 20 + 30

                                           = 90 meters

   Total time taken = 60 seconds

    Average speed = \frac{90}{60}

                               = 1.5 meter per second

2). Velocity is a vector quantity.

    Therefore, average velocity = \frac{\triangle d}{\triangle t}

                                                   = \frac{d_{60}-d_0}{60-0}

                                                   = \frac{90-0}{60-0}

                                                   = 1.5 meter per second                        

7 0
3 years ago
8. How is the crystal size different for extrusive and intrusive igneous rocks?
eduard
<span>Igneous rocks which form by the crystallization of magma at a depth within the Earth are called intrusive rocks. Intrusive rocks are characterized by large crystal sizes, i.e., their visual appearance shows individual crystals interlocked together to form the rock mass.  hope that helped</span>
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- sub level p, maximum number of 6 electrons
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- sub level f, maximum number of 14 electrons
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Answer:

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Explanation:

it explains the most, and it is the correct theorem

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