3 years ago

What is 31,693 rounded to the nearest whole number?

Mathematics

1 answer:

Illusion [34]3 years ago

6 0

Its about 32,000 rounded up

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What integer represents a loss of $20

nikklg [1K]

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Determine the kinetic energy of 8000 Newton’s roller coaster car that is moving with a speed of 20.0 meters/seconds

ohaa [14]

Answer:

The kinetic energy of the roller coaster is 1600000 J.

Step-by-step explanation:

Given:

Mass of the roller coaster is 8000 Newton's and speed 20.0 meters/seconds.

Now, we need to find the kinetic energy $E_{k}$ of the roller coaster.

So, Mass of roller coaster (m) = 8000 N.

Velocity of roller coaster (v) = 20.0 m/s.

Now, putting the formula of kinetic energy:

$E_{k} = \frac{1}{2}\times m\times v^{2}$

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$E_{k}=\frac{1}{2} \times 8000\times 400$

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Therefore, the kinetic energy of the roller coaster is 1600000 J.

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3 years ago

What is the exponent for 23,000 when writen in scientific notation

Fiesta28 [93]

Answer:

2.3 x 10⁴

Step-by-step explanation:

23000 is the number. You need the decimal to be in between the two whole numbers that aren't 0.

2.3 <

2.3 x 10, the exponent after the ten has to move the decimal to the original number of spaces in the original number 23000.

In 23000 its 4 places so your answer would be

2.3 x 10⁴

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3 years ago

What is the value of the 1 in the following number. 2043.61

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