Answers: 2
Physics, 21.06.2019 23:00
Athermometer is removed from a room where the temperature is 70Β° f and is taken outside, where the air temperature is 10Β° f. after one-half minute the thermometer reads 60Β° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) Β° f how long will it take for the thermometer to reach 30Β° f? (round your answer to two decimal places.)
Answers: 3
Physics, 22.06.2019 00:00
1134567 a jet with mass m = 1.1 Δβ 105 kg jet accelerates down the runway for takeoff at 2 m/s2. 1) what is the net horizontal force on the airplane as it accelerates for takeoff? 2.2*10^5 n your submissions: 2.2*10^5 computed value: 220000submitted: saturday, january 26 at 2: 41 pm feedback: correct! 2) what is the net vertical force on the airplane as it accelerates for takeoff? 0 n your submissions: 0 computed value: 0submitted: saturday, january 26 at 2: 41 pm feedback: correct! 3) once off the ground, the plane climbs upward for 20 seconds. during this time, the vertical speed increases from zero to 21 m/s, while the horizontal speed increases from 80 m/s to 95 m/s. what is the net horizontal force on the airplane as it climbs upward? n 4) what is the net vertical force on the airplane as it climbs upward? n 5) after reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 13 seconds. what is the net horizontal force on the airplane as it levels off? n 6) what is the net vertical force on the airplane as it levels off?
Answers: 1
What two angles of elevation will enable a projectile to reach a target 15 km downrange on the same...
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