A consumer upset with the latest trend of postal rate increases has decided to try to send letters by balloon even though they may not reach their intended destinations. A 79200 cm³ gas-filled balloon will provide enough lift for a 43.4 g package to be accelerated upward at a rate of 3.25 m/s². For these circumstances, calculate the density of the gas the consumer fills the balloon with. The acceleration due to gravity is g = 9.81 m/s² and the density of air is Pair = 1.16 kg/m³. Neglect the mass of the balloon material and the volume of the package. p = kg/m³

Q17

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A submersible vehicle is in ocean at a depth of 26.2 m. What is the absolute pressure (in Pa) at this depth? The density of the water in the ocean is 1.00 X 103 kg/m³, and the air above is at a pressure of 101.3 kPa. Submit your answer in exponential form.

At the surface of a freshwater lake, the pressure is 105 kPa. What is the approximate pressure decrease in going 42.6 m above the surface? Air at 20°C has density of 1.20 kg/m3.          in kPa What is the approximate pressure decrease in going 42.6 m above the surface? Air at 20°C has density of 1.20 kg/m3.           In pa

For the next two items: A playroom has dimensions 3700 mm x 4300 mm x 2500 mm. How much does the air weigh in the room if the air pressure is 1.0 atm? O 402 N 472 N O 390 N 48 N

A simple thermometer is formed by taking a large spherical container of volume 1.13m³ and filling it with an ideal gas. Then, a U-shaped tube is attached that is very narrow so that very little fluid/gas can fit inside the tube. The tube has a small quantity of a fluid of density 1200kg/m³ placed in it. In equilibrium at room temperature - 21.9°C - the height of the fluid on both sides of the U-shaped tube are level. This is illustrated in the image below. What is the temperature of the gas in the spherical container when the left side of the fluid is 13.25cm higher than the right side of the fluid in the U-shaped tube? Atmospheric pressure is 101000Pa. °C

You have three objects of varying shapes and sizes: Object 1 is a rectangular block of tin. Object 2 is a cube of aluminum. Object 3 is a sphere of copper. a. the density of tin is 5.75g/cm2. What is the mass of object 1 in kg if the rectangular block has a volume of 1.34L? b. what is the volume in cubic inches of object 2 if the cube of aluminum 7.58 inches on a side? c. what is the mass in kg of object 2? the density of aluminum is 2.70g/cm3 d. what is the volume in cm3 of object 3 if the sphere of copper has a diameter 8.62cm? the volume of the sphere is 4 {pi}^3/3 e. what is the mass in kg of object 3? Copper has a density of 8.96g/cm3

A manometer containing water with one end connected to a container of gas has a column height difference of  h = 0.27 m  (see figure below). If the atmospheric pressure on the right column is 1.01 ✕ 105 Pa, find the absolute pressure of the gas in the container. The density of water is 1.0 ✕ 103 kg/m3. Pa

A light balloon is filled with 402 m3 of helium at atmospheric pressure. (a) At 0°C, the balloon can lift a payload of what mass? kg (b) In the table below, observe that the density of hydrogen is nearly half the density of helium. What load can the balloon lift if filled with hydrogen? kg Densities of Some Common Substances at Standard Temperature (0°C) and Pressure (Atmospheric) Substance p(kg/m³) Substance p(kg/m³) Air 1.29 Ice 0.917 X 103 Aluminum 2.70 X 103 Iron 7.86 X 103 Benzene 0.879 X 103 Lead 11.3 X 10 8.92 X 10 0.806 X 103 Copper Mercury 13.6 X 103 Ethyl alcohol Oak 0.710 X 10 Fresh water 1.00 X 103 Oxygen gas 1.43 Glycerin 1.26 X 103 Pine 0.373 X 103 Gold 19.3 X 103 Platinum 21.4 X 103 Helium gas 1.79 X 10-1 Seawater 1.03 X 103 Hydrogen gas 8.99 X 10-2 Silver 10.5 X 103