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telo118 [61]
3 years ago
10

2)

Physics
1 answer:
ludmilkaskok [199]3 years ago
3 0
B).  A <span>car that rounds a curve at a constant speed is accelerating.

</span><span>D).  A car that is set to a constant speed of 60 miles per hour is
accelerating IF the road ever curves. </span><span>

</span>
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The initial volume reading in a graduated cylinder is 30 mL. The mass of an irregular shape of an unknown metal piece is 55.3 g.
Vadim26 [7]

Answer:

7.9\frac{gr}{cm^3}

Explanation:

When we put the metal piece in the liquid (which is in the graduated cylinder), how much it goes up is equal to the volume of the piece we inserted.

So now we know that the volume of that piece of unknown metal is 7mL (which is the same as 7cm^3).

Density is \frac{mass}{volume}.

So the density of that piece of metal is \frac{55.3g}{7cm^3}

Which leaves us with a final density of 7.9\frac{gr}{cm^3}

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3 years ago
What is the velocity of a plane that traveld 3000 miles from new york to california in 5.0 hours
JulijaS [17]
The Velocity is 666.67 mph
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2 years ago
Which statements accurately describe the Doppler effect? Select three options.
Katena32 [7]

Answer:The answer is A,B and C

Explanation: it can be use to learn universe behavior,it is also use for the measurements of velocity of galaxy,and is can also be use to indicate,galaxy motion.

Doppler effect,measures the speed which star and galaxy are moving away from us or towards us. It shows the color of wavelength to be either red shift or blue shift.

6 0
3 years ago
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In this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good qu
Mamont248 [21]

We'll look at two properties:

1. The variation in temperature

2. The material's heat transfer coefficient

By taking an example;

Use a circular rod made of a certain material (for example, steel) that is insulated all the way around.

One end of the rod is immersed in a huge reservoir of 100°C water, while the other is immersed in water  at 40°C. The cold water is kept in an insulated cylinder on both sides. The temp of the chilly water is measured using a meter as a time - dependent.

Conclusion of experiment;

  • Heat is transferred from a hot location to a cooler region.
  • Whenever heat is applied to a body, its thermal power rises, and its temperature rises.

Learn more:

brainly.com/question/21532922?referrer=searchResults

4 0
2 years ago
Amanda has started running as her primary form of exercise, but she's getting bored with it and finds excuses to procrastinate.
blsea [12.9K]

AnswerB

Explanation:

Just get good

KIDDDDDD

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2 years ago
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