Level 1 Equations
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Level 4 Equations
100

sqrt (x) = 6

x = 36

100

8sqrt(3x)=48

x = 12

100

2 + sqrt(3x-1) = 7

x = 24

100

x+4=sqrt(x+10)

x = -6 or x = -1

200

sqrt (4x) = 10

x = 25

200

root(3)(x) - 10 = -3

x = 343

200

sqrt(2x+3) = sqrt(x-1)

x = -4

200

4+sqrt(x+2) = x

x = 7 or x = 2

300

sqrt (x/3) = 2

x = 12

300

3sqrt((3x)/2)=9

x = 6

300

1+sqrt(2x+3)=6

x = 11

300

-4root(3)(x+10)+3=15

x = -37

400

sqrt ((2x)/5) = 4

x = 40

400

5sqrt((4x-8)/2) = 30

x = 20

400

-8+sqrt(5a-5)=-3

a = 6

400

x^(2/3)+45= 70

x =  125 or -125

500

sqrt (-x) = 3

x = -9

500

3sqrt((9x+1)/4) = 12

x = 7

500

sqrt(x/10) = sqrt(3x-58)

x = 20

500

The Kinetic Energy (Ek) of an object depends on the object's mass (m) and velocity (v) and can be written as the equation below. What is the Kinetic Energy (measured in Joules) of an object with a mass of 1,000 kilograms that is traveling at 30 meters per second?

v=sqrt((2E_k)/m. 

30 = sqrt((2E_k/1,000)

E_k = 450,000J

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