A spherical balloon is partially blown up and its surface area is measured. More air is...
A spherical balloon is partially blown up and its surface area is measured. More air is then added, increasing the volume of the balloon. If the surface area of the balloon expands by a factor of 7.70 during this procedure, by what factor does the radius of the balloon increase?
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A spherical balloon is partially blown up and its surface area
is measured. More air is...
Air is blown into a spherical balloon so that, when its radius is 6.60 cm, its...
Air is blown into a spherical balloon so that, when its radius is 6.60 cm, its radius is increasing at the rate 0.900 cm/s. (a) Find the rate at which the volume of the balloon is increasing. 164 Your response differs from the correct answer by more than 10%. Double check your calculations. cm/s (b) If this volume flow rate of air entering the balloon is constant, at what rate will the radius be increasing when the radius is 12.50...
12. The radius of a spherical hot-air balloon is measured as 20 feet with a possible...
12. The radius of a spherical hot-air balloon is measured as 20 feet with a possible error of 2 feet. 4 vaar a. Use differentials to calculate the maximum error in the estimate of the volume. b. What is the percent error in computing the volume of the balloon to the nearest hundredth of a percent?
6. (4 pts) Air is being pumped into a spherical balloon so that its volume increases...
6. (4 pts) Air is being pumped into a spherical balloon so that its volume increases at a rate of 100 cm?/s. How fast is the radius of the balloon increasing when the diameter is 50 cm? The formula for the volume of a sphere is V = r.
A spherical weather balloon is filled with hydrogen until its radius is 3.10 m. Its total...
A spherical weather balloon is filled with hydrogen until its radius is 3.10 m. Its total mass including the instruments it carries is 16.0 kg. (a) Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3. kN (b) What is the net force acting on the balloon and its instruments after the balloon is released from the ground? kN (c) Why does the radius of the balloon tend to increase as it rises to...
A spherical weather balloon is filled with hydrogen until its radius is 3.00 m. Its total mass including the instruments it carries is 15.0 kg. The balloon is released from the ground. 6. aw free...
A spherical weather balloon is filled with hydrogen until its radius is 3.00 m. Its total mass including the instruments it carries is 15.0 kg. The balloon is released from the ground. 6. aw free body diagram of the balloon, assuming the air resistance is negligible. b) Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3. What is the net force acting on the balloon and its instrument? c) hy does the radius...
A lighter-than-air spherical balloon and its load of passengers and ballast are floating stationary above the...
A lighter-than-air spherical balloon and its load of passengers and ballast are floating stationary above the earth. Ballast is weight (of negligible volume) that can be dropped overboard to make the balloon rise. The radius of this balloon is 5.19 m. Assuming a constant value of 1.29 kg/m3 for the density of air, determine how much weight must be dropped overboard to make the balloon rise 197 m in 12.0 s.
A lighter-than-air spherical balloon and its load of passengers and ballast are floating stationary above the...
A lighter-than-air spherical balloon and its load of passengers and ballast are floating stationary above the earth. Ballast is weight (of negligible volume) that can be dropped overboard to make the balloon rise. The radius of this balloon is 6.87 m. Assuming a constant value of 1.29 kg/m3 for the density of air, determine how much weight must be dropped overboard to make the balloon rise 166 m in 11.0 s.
Assume that the surface area of a cell in the lungs that is exposed to air...
Assume that the surface area of a cell in the lungs that is exposed to air is square-shaped. As a result of a prescription drug if the cell swells and its sides double, by what factor would its exposed surface area increase? (Show your reasoning) (2 marks)- If the cell in the above question was cube-shaped, by what factor would its volume increase when its sides increase by a factor of two? + (Show your reasoning) (2 marks)
3 As the volume of s cell Increases, what happens to its surface area )Its surface...
3
As the volume of s cell Increases, what happens to its surface area )Its surface area increases at the same rate. bj its surface area grows more quickly than the volume. ) Its surface area stays the same d) its surface area grows but more slowly than the volume does
A helium balloon ride lifts up passengers in a basket. Assume the density of air is...
A helium balloon ride lifts up passengers in a basket. Assume the density of air is 1.28 kg/m and the density of helium in the balloon is 0.18 kg/ml. The radius of the balloon (when filled) is R=4.9 m. The total mass of the empty balloon and basket is my - 121 kg and the total volume is Vb -0.071 m. Assume the average person that gets into the balloon has a mass mp-72 kg and volume V -0.076 m...
Air is blown into a spherical balloon so that, when its radius is 6.60 cm, its radius is increasing at the rate 0.900 cm/s. (a) Find the rate at which the volume of the balloon is increasing. 164 Your response differs from the correct answer by more than 10%. Double check your calculations. cm/s (b) If this volume flow rate of air entering the balloon is constant, at what rate will the radius be increasing when the radius is 12.50...
12. The radius of a spherical hot-air balloon is measured as 20 feet with a possible error of 2 feet. 4 vaar a. Use differentials to calculate the maximum error in the estimate of the volume. b. What is the percent error in computing the volume of the balloon to the nearest hundredth of a percent?
6. (4 pts) Air is being pumped into a spherical balloon so that its volume increases at a rate of 100 cm?/s. How fast is the radius of the balloon increasing when the diameter is 50 cm? The formula for the volume of a sphere is V = r.
A spherical weather balloon is filled with hydrogen until its radius is 3.00 m. Its total mass including the instruments it carries is 15.0 kg. The balloon is released from the ground. 6. aw free body diagram of the balloon, assuming the air resistance is negligible. b) Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3. What is the net force acting on the balloon and its instrument? c) hy does the radius...
Assume that the surface area of a cell in the lungs that is exposed to air is square-shaped. As a result of a prescription drug if the cell swells and its sides double, by what factor would its exposed surface area increase? (Show your reasoning) (2 marks)- If the cell in the above question was cube-shaped, by what factor would its volume increase when its sides increase by a factor of two? + (Show your reasoning) (2 marks)
3
As the volume of s cell Increases, what happens to its surface area )Its surface area increases at the same rate. bj its surface area grows more quickly than the volume. ) Its surface area stays the same d) its surface area grows but more slowly than the volume does
A helium balloon ride lifts up passengers in a basket. Assume the density of air is 1.28 kg/m and the density of helium in the balloon is 0.18 kg/ml. The radius of the balloon (when filled) is R=4.9 m. The total mass of the empty balloon and basket is my - 121 kg and the total volume is Vb -0.071 m. Assume the average person that gets into the balloon has a mass mp-72 kg and volume V -0.076 m...
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