Physics, 14.09.2019 10:30 arianawelsh123l
Aball is thrown horizontally from the top of a upward to be in the y direction) and lands 121.8 m from the base of the building o n ce me the bathrown in the direction and (a) how long (ins) is the ball in the air (b) what must have been the initial horizontal component of the velocity (in m/s)? (indicate the direction with the sign of your answer.) (c) what is the vertical component of the velocity (in m/s) just before the ball hits the ground (indicate the direction with the sign of your answer.) (d) what is the velocity (in m/s) (including both the horizontal and vertical components) of the ball just before it hits the ground magnitude direction counterclockwise from the x-axis
Answers: 1
Physics, 22.06.2019 00:00, tsupreme
1134567 a jet with mass m = 1.1 ă— 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
Physics, 22.06.2019 07:00, lujaynsparkles
Which articulations allow for greatest range of motion?
Answers: 1
Physics, 22.06.2019 16:40, jcblake
Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.
Answers: 2
Aball is thrown horizontally from the top of a upward to be in the y direction) and lands 121.8 m fr...
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