A 2.50-kg stone is dropped from rest at a height of 3.75 m. What impulse does gravity impart to this stone from the instant it is dropped until it hits the ground, assuming negligible air resistance?
What will be an ideal response?
Answer: 21.4 N ? s
Physics & Space Science
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A 1500-kg car traveling at 90 km/h toward the east suddenly collides with a 3000-kg car traveling at 60 km/h toward the south
The two cars stick together after the collision. What is the speed of the cars after collision? A) 8.3 m/s B) 14 m/s C) 17 m/s D) 22 m/s
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Vibrating air columns relate to which instrument?
A) guitar B) harp C) trumpet D) all of the above E) none of the above
Physics & Space Science
For which of the values below is x > x3?
a. x = -1.5 c. x = 1.0 b. x = 0 d. x = 1.5
Physics & Space Science