external air pressure is po = 1.013 × 10° Pa. Under these conditions the density of air is pi = 1.2 kg/m³. Take g = 9.81 m.s-2. Assume that the pressure in the balloon is the same as the outside pressure except for part (c). (a) What temperature T, must the warmed air inside the balloon have to make the balloon just float? (b) First the balloon is held fast to the ground and the internal air is heated to a steady- state temperature of T3 = 110°C. The balloon is fastened with a rope. Calculate the force on the rope. (c) Consider the balloon being tied up at the bottom (the density of the internal air stays constant). With a steady-state temperature T3 = 110°C of the internal air the balloon rises in an isothermal atmosphere of 20°C and a ground pressure of Po 1.013 × 10° Pa. Which height h can be gained by the balloon under these conditions?

external air pressure is po = 1.013 × 10° Pa. Under these conditions the density of air is pi = 1.2 kg/m³. Take g = 9.81 m.s-2. Assume that the pressure in the balloon is the same as the outside pressure except for part (c). (a) What temperature T, must the warmed air inside the balloon have to make the balloon just float? (b) First the balloon is held fast to the ground and the internal air is heated to a steady- state temperature of T3 = 110°C. The balloon is fastened with a rope. Calculate the force on the rope. (c) Consider the balloon being tied up at the bottom (the density of the internal air stays constant). With a steady-state temperature T3 = 110°C of the internal air the balloon rises in an isothermal atmosphere of 20°C and a ground pressure of Po 1.013 × 10° Pa. Which height h can be gained by the balloon under these conditions?

Name: 3. Consider a hot-air balloon with fixed volume VB = 1.1 m³. The mass
Uploaded: 2024-03-20T06:56:55.000Z
Channel: Bartleby
Description: 3. Consider a hot-air balloon with fixed volume VB = 1.1 m³. The mass of the balloonenvelope, whose volume is to be neglected in comparison to VB, is m̟ = 0.187 kg. Theballoon shall be started, where the external air temperature is T1 = 20°C and the

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Give explanations
A cylinder floats in a tank containing a liquid with an unknown density. A U-tube manometer is connected to the tank, as shown in the figure below. Determine: (a) The density of the fluid in the tank, pt. (b) The force exerted by the fluid on the cylinder. Note that the top of the cylinder is flush with the fluid surface. (c) The weight of the cylinder. 0.3 m Weight? 0.6 m Cylinder Tank fluid P=? 0.3 m + 0.6 m 0.15 m PA -2,500 Pa Water P-1000 kg/m³ Manometer fluid Pm-1650 kg/m³
Problem 2: A U-tube manometer is connected to pressurized tanks (Tanks A and B), as shown in Fig. 2. The pressure in Tank A is 500 kPa. The densities of water and mercury are 1000 and 13600 kg/m³, respectevely. Neglect the density of air and determine the pressure in Tank B. PB = Pa + Pm ghm + 2-P+ 1600000 + 13:0019.81)1,5) Pg=500000 + 13,600 (9.81.2.0m) 1000 (9.5Px1.0m) 500000 Pa + 13, 6000 (1791), (2.0) + 1000 Yw g h w PB = 776x6 kPa 690 kPa P. 500,000 113.600 (36819:42 000 + 1(1000) Xh+m + H) - Ym 13,600((500-X) Air- 13,000 2 Im B ܢܢܢܢܢ Mercury 4 ܠܠܠܠ Water water) = 0 6801499 Fig. 2 U-tube manometer +4 13,600 2+1 -1.0=0 Air 1.5 m
4. A rectangular gate having a width of 1.5 m is located in sloping side of a tank as shown in fig. (2.4).The gate is hinged along its top edge and is held in position by the force (P). Friction at the hinge and the weight of the gate can be neglected Determine the required value of (P). 3 1 Hinga Cate 1.8 m 50" Figure (2.4)
In order to predict the behavior of a small oil pump, tests are to be made on a model using air. The oil pump is to be driven by a 1/20 hp motor at 1800 rpm and a ¼ hp motor is available to drive the air pump at 600 rpm. Using the SG of oil at 0.92 and the density of air constant at 0.00238 slug/ft3, what size model should be built?
i need the answer quickly
FLUID PROPERTIES / ARCHIMEDES PRINCIPLE
A 12.5 kg block of metal measuring 12.0 cm by 10.0 cm by 10.0 cm is suspended from a scale and immersed in 5.60 cm below the surface of the water. Scale a b (a) What are the magnitudes of the forces (in N) acting on the top and on the bottom of the block due to the s significant figures.) Frop N N Fbottom (b) What is the reading of the spring scale (in N)? N (c) Show that the buoyant force equals the difference between the forces at the top and bottom of the block. ( II
A tank containing helium has a manometer attached, as shown in the figure. The local atmospheric pressure, P. is 101 kPa and the gravitational acceleration is 9.81 m/s. The heights of each fluid in the manometer are h,-360 mm, h -450 mm and hs550 mm. Assume the densities of the water (pw), light oil (pw), and mercury (p) in the system are equivalent to those at standard tmospheric conditions. Determine the pressure of the helium in the tank, PHe, in kPa. P. Light Oil. P Helium 5. Water. P.
Figure shows a set-up with a vessel containing a plunger and a cylinder. What force, F is required to balance the weight of the cylinder. If the weight of the plunger is negligible?
If the piston mass is 20 kg and the car mass with its base is 400 kg, what will the minimum pressure (kpa) that is required from the air compressor to lift the car? There are three layers of oils with different specific gravities as S1=0.95, S2-0.85, and S3-0.38. Neglect the shear force between the piston and its cylinder. Control valve - piston Air pressure from compressor 25-cm diameter 60 cm S3 S2 50 cm Air S1 40 cm S1 Lenovo K9 Note Al Dual Camera -12 DM
I need help finding the force on a flat door at the bottom of the vessel that has a cross-sectional area of 0.5 m2.