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The low-frequency speaker of a stereo set has a surface area of 0.06 m2 and produces 2.03 W of acoustical power. What is the intensity at th

Question

The low-frequency speaker of a stereo set has a surface area of 0.06 m2 and produces 2.03 W of acoustical power. What is the intensity at the speaker (in W/m2)

5 years

Which statement describes the graph of f(x) = 4×2 + 20x + 25? The graph does not intersect the x-axis. The graph touches t

Question

Which statement describes the graph of f(x) = 4x2 + 20x + 25? The graph does not intersect the x-axis. The graph touches the x-axis at (–2.5, 0). The graph intersects the x-axis at (–0.4, 0) and (0.4, 0).

5 years

A car’s initial speed of 15m/s is running with the acceleration of 32m/ s2 in 8 seconds. What is the car’s final velocity?

Question

A car's initial speed of 15m/s is running with the acceleration of 32m/ s2 in 8 seconds. What is the car's final velocity?

5 years

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The low-frequency speaker of a stereo set has a surface area of 0.06 m2 and produces 2.03 W of acoustical power. What is the intensity at th

Which statement describes the graph of f(x) = 4×2 + 20x + 25? The graph does not intersect the x-axis. The graph touches t

A car’s initial speed of 15m/s is running with the acceleration of 32m/ s2 in 8 seconds. What is the car’s final velocity?