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lorasvet [3.4K]
3 years ago
10

Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0m/s.

Mathematics
1 answer:
elixir [45]3 years ago
6 0
In this question all required information's are already provided. Based on these details the answer to the question can be easily determined. Let us now write down all the information's that are already given.
Mass of the roller coaster = 1000 kg
Velocity of the roller coaster = 20.0 m/s
We know the formula for finding the kinetic energy is
Kinetic energy = 0.5 * mass * (velocity) ^2
                       = 0.5 * 1000 * (20)^2
                       = 0.5 * 1000 * 400
                       = 200000 Joules
So the Kinetic energy of the roller coaster is 200000 joules.
 
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Convert this equation into standard form.<br> y=3x+15
storchak [24]

Answer:

3x - y = - 15

Step-by-step explanation:

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rearrange y = 3x + 15 into this form

subtract y from both sides

0 = 3x - y + 15 ( subtract 15 from both sides )

3x - y = - 15 ← in standard form


4 0
3 years ago
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ankoles [38]

Answer:

#1 is correct

Step-by-step explanation:

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snow_tiger [21]
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8 0
4 years ago
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Tim Jones bought 100 shares of a mutual fund ABC at $5.25 with no load. And 100 shares of DEF at $6 which had a load of $275.
ipn [44]

Question Completion:

Evaluate the two investments, assuming shares of ABC were sold at $10.00 each, while those of DEF were sold at $15 each.  Which investments yielded the higher return?

Answer:

Tim Jones

Investment in DEF yielded the higher return of $1,225 (net proceeds) than ABC's return of $1,000.

Step-by-step explanation:

a) Data and Calculations:

Investments in ABC and DEF:

                                          ABC           DEF

Investment (shares)          100           100

Unit price of shares         $5.25        $6.00

Total investments            $525        $600

Selling price per share    $10           $15

Sales proceeds              $1,000     $1,500

Investment commission   ($0)        ($275)

Net proceeds from sale $1,000     $1,225

b)  The above calculations show clearly that the investment in DEF with a load of $275 yielded the higher returns than investment in ABC with no load.  This result suggests that the investment load may not be the only factor for rejecting an investment, but its net proceeds.

4 0
3 years ago
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Kisachek [45]
Ok so Dianne pays $28 to get into the fair, she pays $2 for each ride she ride's so I think the equation would be 28+2x= the amount of money she paid 
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3 years ago
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