Chemistry

Chemistry, 03.08.2019 05:40, haleylecompte

When does a skydiver achieve terminal velociety?

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Mathematics, 20.07.2019 03:20, audreymvarney

The velocity v(t) of a 140 pound skydiver is approximated by v(t)=140/1.1 *(1−e^24.2t/140) where t is in seconds after jumping from a plane. what is the skydiver's terminal velocity? that is, in terms of the constants of the problem limt t→∞ v(t)= how long after jumping does it take the skydiver to reach 52 percent of the terminal velocity? \

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Physics, 22.07.2019 00:20, likevlad2014

The air is less dense at higher elevations, so skydivers reach a high terminal speed. the highest recorded speed for a skydiver was achieved in a jump from a height of 39,000 m. at this elevation, the density of the air is only 4.3% of the surface density. estimate the terminal speed of a skydiver at this elevation. suppose that the density of air at sea level is 1.2 kg/m3, the mass of the skydiver is 75 kg , and the cross section area of the skydiver is 0.72 m2.

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Physics, 23.10.2019 17:00, genyjoannerubiera

The air is less dense at higher elevations, so skydivers reach a high terminal speed. the highest recorded speed for a skydiver was achieved in a jump from a height of 39,000 m. at this elevation, the density of the air is only 4.3% of the surface density of air at 20∘c. estimate the terminal speed of a skydiver at this elevation. suppose the mass of the skydiver is 90 kg and the cross section area of the skydiver is 0.72 m2. you could consider the diver as a cylinder traveling sideways for this problem.

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Mathematics, 27.10.2019 04:43, linreaburg

Terminal velocity is the fastest speed that an object can fall through the air. a skydiver reaches a terminal velocity of 120 miles per hour. what is the change in elevation of the skydiver after falling at terminal velocity for 15 seconds?

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