A vehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road, then travels 15 seconds at a constant velocity. Next it slows down, coming to a stop in 5 seconds. The car waits 10 seconds, and then backs up for 5 seconds accelerating from 0 to -10 m/s. Draw a graph showing the vehicle's velocity vs time by following these steps. What is the velocity of the vehicle at 0 seconds? 0 m/s Click or tap the graph to plot this point.
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Amira pulls a 3 pound wagon 4 feet. how much work has she done?
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The base of a 50-meter tower is at the origin; the base of a 50-meter tree is at (0, 50, 0). the ground is flat and the z-axis points upward. the following parametric equations describe the motion of six projectiles each launched at time t = 0 in seconds. (i) r (t) = (50 + t2)k (ii) r (t) = 2t2 j + 2t2k (iii) r (t) = 50 i + 50 j + (50 β t2)k (iv) r (t) = 2t j + (50 β t2)k (v) r (t) = (50 β 2t) i + 2t j + (50 β t)k (vi) r (t) = t i + t j + tk (a) which projectile is launched from the top of the tower and goes downward? at time t = , the projectile hits the ground at point (x, y, z) = . (b) which projectile hits the top of the tree?
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A10-kg isto a of 10 m at aa0.9 kg/m.30 kg of ,at aas10-m .. ( 9.8 m/s2 g.)
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Physics, 23.06.2019 02:30
Which lists the amplitudes of sound waves from these sources in order from greatest to least? busy roadway, kids whispering, average home chainsaw, diesel truck, rustling leaves kids whispering, vacuum cleaner, jet airplane library, conversational speech, music from speaker
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A vehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road, then travels 15 seconds at...
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