The change in kinetic energy (in Joules) as a horse accelerates from canter to gallop is found using the expression 12×350×(122−62)
. Which is the change in kinetic energy?
To find the change in kinetic energy, we substitute the given values into the expression:
12 × 350 × (12^2 - 6^2)
= 12 × 350 × (144 - 36)
= 12 × 350 × 108
= 453,600 Joules
Therefore, the change in kinetic energy is 453,600 Joules.
wrong
Apologies for the mistake.
The correct calculation would be:
12 × 350 × (12^2 - 6^2)
= 12 × 350 × (144 - 36)
= 12 × 350 × 108
= 453,600 Joules
Therefore, the change in kinetic energy is 453,600 Joules.
inncorect.
I apologize for the incorrect response. Let's calculate the change in kinetic energy correctly.
The expression given is 12 × 350 × (122−62).
First, let's simplify the expression inside the brackets: (122-62) = (144-36) = 108.
Now we can substitute this back into the original expression:
12 × 350 × 108 = 453,600 Joules.
Therefore, the change in kinetic energy is 453,600 Joules.
Which expression represents the sum of 8 and twice a number?
The expression that represents the sum of 8 and twice a number is 8 + 2x, where x represents the number.
Each side of a square is (7 + 3x) units. Which is the perimeter of the square?
The perimeter of a square is the sum of all four sides.
Since each side of the square is given as (7 + 3x) units, the perimeter can be found by adding all four sides together:
Perimeter = (7 + 3x) + (7 + 3x) + (7 + 3x) + (7 + 3x)
= 4(7 + 3x)
= 4 * 7 + 4 * 3x
= 28 + 12x
Therefore, the perimeter of the square is 28 + 12x units.