A child has a helium balloon tied to her wrist as she walks through the park...
A child has a helium balloon tied to her wrist as she walks
through the park at a speed 1.15 m/s. The balloon has a diameter of
9 in, and it is tied to a 1.2 m long string.
Take the density of air to be 1.104 kg/m3, the density
of helium to be 0.169 kg/m3, and the density of the
latex of the balloon to be 0.019 kg/m2. The viscous drag
constant of the balloon is 0.016 kg/s.
What is the direction of the string from the girl's wrist to the
balloon?
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A child has a helium balloon tied to her wrist as she walks
through the park...
A helium-filled balloon, whose envelope has a mass of 0.29 kg, is tied to a 3.9-m...
A helium-filled balloon, whose envelope has a mass of 0.29 kg,
is tied to a 3.9-m long, 0.051-kg string. The balloon is spherical
with a radius of 0.40 m. When released, it lifts a length
h of the string and then remains in equilibrium, as in the
figure below. Determine the value of h. Hint:
Only that part of the string above the floor contributes to the
load being supported by the balloon. (The density of air is 1.29
kg/m3...
A helium-filled balloon, whose envelope has a mass of 0.28 kg, is tied to a 3.5-m...
A helium-filled balloon, whose envelope has a mass of 0.28 kg, is tied to a 3.5-m long, 0.051-kg string. The balloon is spherical with a radius of 0.40 m. When released, it lifts a length h of the string and then remains in equilibrium, as in the figure below. Determine the value of h. Hint: Only that part of the string above the floor contributes to the load being supported by the balloon. (The density of air is 1.29 kg/m3...
A helium-filled balloon, whose envelope has a mass of 0.26 kg, is tied to a 3.6-m long, 0.053-kg string. The balloon is...
A helium-filled balloon, whose envelope has a mass of 0.26 kg,
is tied to a 3.6-m long, 0.053-kg string. The balloon is spherical
with a radius of 0.40 m. When released, it lifts a length
h of the string and then remains in equilibrium, as in the
figure below. Determine the value of h. Hint:
Only that part of the string above the floor contributes to the
load being supported by the balloon. (The density of air is 1.29
kg/m3...
A spherical balloon of 11 m in diameter is filled with helium of gas constant, R...
A spherical balloon of 11 m in diameter is filled with helium of gas constant, R = 2.0771 kJ/kg.K at T = 15 oC and P = 100 kPa. If the balloon is used to lift load in the air of 1.25 kg/m3 density, how much load in Newtons (in addition to its own weight) can the balloon carry. Ignore drag force and weight of the balloon’s fabric? (Volume of a sphere = 4 3 ??^3 ).
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(11%) Problem 6: A balloon filled with helium gas has an average density ofp,-039 kg/m3. The density of the air is pa 1.23 kg/m3. The volume of the balloon is V, 0.087 m3. The balloon floats upward with acceleration a Otheexpertt 50% Part (a) Express the acceleration of the balloon a in terms of the variables given in the problem statement, assuming upwards is th positive direction. a-(p Vbg-mg)m X Attempts Remain ed 色ム5000 Part (b) Calculate the numerical value...
1. Determining fluid flow through pipes and tubes has great relevance in many areas of engineerin...
1. Determining fluid flow through pipes and tubes has great relevance in many areas of engineerin gase g and science. In engineering, typical applications include the flow of liquids and s through pipelines and cooling systems. Scientists are interested in topics ranging from flow in blood vessels to nutrient transmission through a plant's vascular system. The resistance to flow in such conduits is parameterized by a dimensionless number called the friction factor. For turbulent flow, the Colebrook Equation provides a...
A 11-2 A rock with a diameter of 20 cm is dropped from a very high...
A
11-2 A rock with a diameter of 20 cm is dropped from a very high cliff. Using the 01pts drag-force equation F-(0.25) density of airXcross-sectional area)v2, estimate the time it will take for the rock to reach terminal velocity. The density of air is about 1.2 kg/m3. Submission History Incorrect. Your answer: "5 min". Score: 0/0.1 You may resubmit below: OA. 30s 5 min C. 30 min OD. 2 hours ов. 11-3 A wrench of mass 1.5 kg is...
3.) The wave function for a harmonic wave on a string is y(x,t) (0.001 m)sin[(62.8 m1)x...
3.) The wave function for a harmonic wave on a string is y(x,t) (0.001 m)sin[(62.8 m1)x (314 s1)t] (a.) What is the speed of the wave, and which direction does it travel? (b.) What is the wavelength? (c.) What is the frequency? (d.) What is the period? (e.) Suppose a piece of the string is clamped (held fixed) at two points 1.4 m apart. What are the longest three wavelengths of standing waves that can exist between the two points?...
A helium-filled balloon, whose envelope has a mass of 0.29 kg,
is tied to a 3.9-m long, 0.051-kg string. The balloon is spherical
with a radius of 0.40 m. When released, it lifts a length
h of the string and then remains in equilibrium, as in the
figure below. Determine the value of h. Hint:
Only that part of the string above the floor contributes to the
load being supported by the balloon. (The density of air is 1.29
kg/m3...
A helium-filled balloon, whose envelope has a mass of 0.28 kg, is tied to a 3.5-m long, 0.051-kg string. The balloon is spherical with a radius of 0.40 m. When released, it lifts a length h of the string and then remains in equilibrium, as in the figure below. Determine the value of h. Hint: Only that part of the string above the floor contributes to the load being supported by the balloon. (The density of air is 1.29 kg/m3...
A helium-filled balloon, whose envelope has a mass of 0.26 kg,
is tied to a 3.6-m long, 0.053-kg string. The balloon is spherical
with a radius of 0.40 m. When released, it lifts a length
h of the string and then remains in equilibrium, as in the
figure below. Determine the value of h. Hint:
Only that part of the string above the floor contributes to the
load being supported by the balloon. (The density of air is 1.29
kg/m3...
(11%) Problem 6: A balloon filled with helium gas has an average density ofp,-039 kg/m3. The density of the air is pa 1.23 kg/m3. The volume of the balloon is V, 0.087 m3. The balloon floats upward with acceleration a Otheexpertt 50% Part (a) Express the acceleration of the balloon a in terms of the variables given in the problem statement, assuming upwards is th positive direction. a-(p Vbg-mg)m X Attempts Remain ed 色ム5000 Part (b) Calculate the numerical value...
1. Determining fluid flow through pipes and tubes has great relevance in many areas of engineerin gase g and science. In engineering, typical applications include the flow of liquids and s through pipelines and cooling systems. Scientists are interested in topics ranging from flow in blood vessels to nutrient transmission through a plant's vascular system. The resistance to flow in such conduits is parameterized by a dimensionless number called the friction factor. For turbulent flow, the Colebrook Equation provides a...
A
11-2 A rock with a diameter of 20 cm is dropped from a very high cliff. Using the 01pts drag-force equation F-(0.25) density of airXcross-sectional area)v2, estimate the time it will take for the rock to reach terminal velocity. The density of air is about 1.2 kg/m3. Submission History Incorrect. Your answer: "5 min". Score: 0/0.1 You may resubmit below: OA. 30s 5 min C. 30 min OD. 2 hours ов. 11-3 A wrench of mass 1.5 kg is...
3.) The wave function for a harmonic wave on a string is y(x,t) (0.001 m)sin[(62.8 m1)x (314 s1)t] (a.) What is the speed of the wave, and which direction does it travel? (b.) What is the wavelength? (c.) What is the frequency? (d.) What is the period? (e.) Suppose a piece of the string is clamped (held fixed) at two points 1.4 m apart. What are the longest three wavelengths of standing waves that can exist between the two points?...
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