Aparticular cylindrical bucket has a height of 36.0 cm, and the radius of its circular cross-section is 15 cm. the bucket is empty, aside from containing air. the bucket is then inverted so that its open end is down and, being careful not to lose any of the air trapped inside, the bucket is lowered below the surface of a fresh-water lake so the water-air interface in the bucket is 20.0 m below the surface of the lake.
to keep the calculations simple, use g = 10 m/s2, atmospheric pressure = 1. 105 pa, and the density of water as 1000 kg/m3.a. if the temperature is the same at the surface of the lake and at a depth of 20.0 m below the surface, what is the height of the cylinder of air in the bucket when the bucket is at a depth of 20.0 m below the surface of the lake? b. if, instead, the temperature changes from 300 k at the surface of the lake to 275 k at a depth of 20.0 m below the surface of the lake, what is the height of the cylinder of air in the bucket?
Answers: 1
Physics, 22.06.2019 20:40
Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.
Answers: 1
Physics, 22.06.2019 22:30
An alarm clock has a current of 4.5 amps and a resistance of 3.2 ohms. what is the voltage in the circuit? a.1.4 volts b.0.71 volts c.14 volts d.46 volts
Answers: 2
Physics, 23.06.2019 06:50
The results of huy's eye exam show that he is nearsighted. which explanation should huy expect to hear? "you need convex lenses to shorten the distance that light takes to focus in your eyes." "you need concave lenses to shorten the distance that light takes to focus in your eyes." "you need convex lenses to lengthen the distance that light takes to focus in your eyes." "you need concave lenses to lengthen the distance that light takes to focus in your eyes."
Answers: 1
Aparticular cylindrical bucket has a height of 36.0 cm, and the radius of its circular cross-section...
Mathematics, 31.03.2020 07:48
Biology, 31.03.2020 07:49
Chemistry, 31.03.2020 07:49
English, 31.03.2020 07:49
Biology, 31.03.2020 07:49
Business, 31.03.2020 07:49
Mathematics, 31.03.2020 07:49
History, 31.03.2020 07:49
Mathematics, 31.03.2020 07:50
Biology, 31.03.2020 07:50
English, 31.03.2020 07:50