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gavmur [86]
3 years ago
12

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

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
3 0
KE = 0.5*m*v2 KE = (0.5) * (1000 kg) * (20 m/s)2
You might be interested in
The geometric mean of 8 and 2 is<br><br> 5<br> 3<br> 4<br> 16
igomit [66]

Answer:5

Step-by-step explanation:

<h3><u>(8 + 2)</u> <u>sum of values  </u>    =    <u>10</u>  =  5</h3><h3>    2    number of values        2</h3><h3 />

There is equal spacing between the mean and the extremes

8 - 5 = 3

5 - 2 = 3

5 0
3 years ago
What is the probability that a resident reports high satisfaction, given that the resident is a renter?
dem82 [27]

Answer:

The probability that a resident reports high satisfaction while the resident is a renter is Option(a) 13.7\%

Step-by-step explanation:

Given:

                               Levels of satisfaction

                      High      Medium     Low       Total

Owners          26             34               18           78

Renters           15            12                5            22

Total               41             46               23          110

The Resident is a renter.

Step 1:

To find the probability that a resident reports high satisfaction.

P(Renter- higher satisfaction)= Higher Satisfaction by render ÷ Total level of satisfaction

=\frac{15}{110}

=0.137

13.7\% is the probability that a resident reports high satisfaction.

Therefore, Option (a) is a correct answer.

Learn more about Probability, refer:

  • brainly.com/question/13604758
  • brainly.com/question/10734660
7 0
3 years ago
C=2(y-k) solve for y​
marshall27 [118]

Answer:

\blue{y = \dfrac{C + 2k}{2}}

Step-by-step explanation:

C = 2(y - k)

C = 2y - 2k

C + 2k = 2y

\dfrac{C + 2k}{2} = y

y = \dfrac{C + 2k}{2}

5 0
2 years ago
I need help, please, I'm willing to give 24 points!
Margaret [11]
(1) 2 of one step equations

x - 23 = 8
x - 23 + 23 = 8 + 23
x = 31

n + 2 = 9
n + 2 - 2 = 9 - 2
n = 7

(2) 2 equations with fractions

3/4 (x + 3) = 9
4 [ 3/4 (x + 3) ] = 4[9]
3 (x + 3) = 36
3x + 9 - 9 = 36 - 9
3x/3 = 27/3

1/3 x 3/4
cross multiply
so 3/12 and simplify which makes it
1/4

(3) distributive property

3(2 + 4) = (3 • 2) + (3 • 4)
3(6) = 6 + 12
18 = 18


4 0
3 years ago
4 3/10<br> -<br> 2 23/100<br> _________
AVprozaik [17]
43/100 - 223/100

(43x100)-(23x100)/100x100

-18000/100000

(-18000/2000)/(100000/2000)

= -9/5 or -1 4/5

7 0
3 years ago
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