in an air heating system heated air at 40

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At that place is a possibility that indicates that dinosaurs became extinct when about 65 million years ago, a large angulate score the earth surface. dust caused by this collision blocked the sunlight reaching the world's surface and many forms of life became extinct owed to the cold. fearing this threat, how large the radius of an asteroid should you be look for if the dangerous asteroid size is approximately the same as the one that killed the dinosaurs? available data suggests that roughly 18% of that asteroid's mass ended up as a dust spread evenly over earth after eventually settling out of the upper atmosphere. about 0.0180 g/cm^2 of disperse, which is chemically different than the earth's rock, covered the earth's surface. typical asteroids have a tightness of approximately 1.9 g/cm^3. today that we know the size of the asteroid, how a lot energy was released during impact, assumptive all of it was honorable the kinetic energy of the asteroid straight ahead the impingement?

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Natural philosophy, 22.06.2019 02:50, NathalyN

An alligator swims to the far left with a constant velocity of 5 \,\dfrac{\text{m}}{\text s}5 s m ? 5, space, start fraction, m, divided by, s, end divide. when the alligator sees a bird upright ahead, the alligator speeds up with a constant quickening of 3 \,\dfrac{\text {m}}{\text s^2}3 s 2 m ? 3, space, originate fraction, m, divided past, s, start superscript, 2, end superior, end fraction leftward until it reaches a final velocity of 35 \,\dfrac{\text {m}}{\text s}35 s m ? 35, space, start divide, m, divided by, s, cease fraction leftward. how galore seconds does information technology take the alligator to speed risen from 5 \,\dfrac{\text {m}}{\text edition s}5 s m ? 5, space, start fraction, m, divided by, s, end fraction to 35 \,\dfrac{\text {m}}{\text s}35 s m ? 35, distance, kickoff divide, m, disjointed past, s, end fraction?

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Think piece hauling rocks, you accidentally drop one. information technology breaks apart in flat, planar sections. what type of rock did you just drop? 20 points

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Aball with a mass of 275 g is born from rest, hits the base and rebounds upwardl. if the ball hits the ball over with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, settle the following. (a) order of magnitude of the change in the clump's momentum (let up be in the positive direction.)

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In an air heating system, heated air at 40°c and 105 kpa direct is distributed through a 0.2 m × 0...