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The kinetic energy, KE, of an object travelling at v velocity can be modeled by the equation KE = mv2, where m is the mass of the object. If an object is moving at a velocity of 9, and it has a kinetic energy of 120, about how great is the object's mass?

(A) Between 0 and 1

(B) Between 1 and 2

(C) Between 2 and 3

(D) 6

(E) 13

The Correct Answer
Explanation

Line segments , , and are parallel and intersect line segments and as shown in the figure below. The ratio of the perimeter of ΔFJK to the perimeter of ΔFLM is 3:5, and the ratio of to is 1:5. What is the ratio of to ?

(F) 1:05 (G) 1:03 (H) 1:02 (J) 2:01 (K) 5:03

Correct Answer: J

In the figure below, ABCD is a rectangle, AB = AE, and E, F, G, and H lie on AD. Of the angles BEA, BFA, BGA, BHA, and ∠BDA, which one has the greatest tangent?

(F) ∠BEA (G) ∠BFA (H) ∠BGA (J) ∠BHA (K) ∠BDA

Correct Answer: F

What is the area, in square inches, of the figure shown below? image

(A)24 (B) 32 (C) 36 (D) 42 (E) 72

Correct Answer: C

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