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Physics
A rocket engine exerts a force of 500 N on a space probe (in outer space!) for 5 seconds. The probe speeds up from rest to a speed of 21 m/s. What is its mass?
Physics
P
Answered by Specialist
1
Physics
A 1000 kg truck moving at 10 m/s runs into a concrete wall. It takes 1.0 second for the truck to completely stop. What is the magnitude of force exerted on the truck during
Physics
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Answered by Specialist
1
Mathematics
Amanda is attempting to launch a model rocket over the roof of her two-story house. The path of the rocket, without consideration of the house, can be modeled by a quadratic
Mathematics
Mathematics
What is the range of the function shown in the graph? Answer Choices {x |x ∈ ℜ, –5 < x < 2} {x |x ∈ ℜ, –5 ≤ x ≤ 2} {y |y ∈ ℜ, –3 < y < 3} {y |y ∈ ℜ, –3 ≤ y ≤ 3}
Mathematics
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Answered by Specialist
1
Mathematics
A quadratic equation is shown below. 6x2 = 10x – 1 What are the solution(s) to the quadratic equation?
Mathematics
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Answered by Specialist
1
Mathematics
A parabola, whose directrix is represented by the dotted line, is shown on the graph below. Which of the following best represents the equation of the parabola in standard
Mathematics
P
Answered by Master
1
Mathematics
An absolute value equation is shown. –│x – 4│ + 2 = –2x + 7 x = is the real solution; x = is the extraneous solution
Mathematics
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Answered by Master
1
Mathematics
Suzette solved a system of three linear equations in three variables using substitution. The steps she used to solve the system are shown below. 3x + 5y + 2z = 3 2x + 3z =
Mathematics
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Answered by Master
1
Mathematics
What is the value of x in the equation below?
3|x – 3.5| + 7.5 = 7.5
Mathematics
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Answered by PhD
1
Physics
A weightlifter lifts a weight of 2000 newtons a vertical distance of 0.5 meter in 0.1 second. What is his power output? 4 × 10-4 W 4 × 104 W 1 × 10-4 W 1 × 104 W
Physics
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Answered by Master
1
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