Homework Answers
According to Bernoulli effect, the pressure is lower where the fluid is moving faster.
When we blow air between the balloons, the velocity of air between the balloons is higher than the velocity of the air outisde the ballons (it is almost still).
Therefore the pressure outside is greater than the pressure between the balloons. Hence the ballons move closer.
Pressure difference = 1/2 pho v^2
= 0.5×1.225×2×2 = 2.45 Pascals
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3. Two balloons are suspended vertically from a support as shown. Then a stream of air...
A 2kg mass is suspended vertically from a spring attached to a fixed support. The spring...
A 2kg mass is suspended vertically from a spring attached to a fixed support. The spring satisfies Hooke's law with a spring constant of k 18 N m1. No damping is present. Gravity acts on the mass with a gravitational constant of g 10 m s2. An external force of R 24 sin (wt) Newton is applied to the mass, directed downwards, where t is the time in seconds since the mass was set in motion and w is a...
A spring is suspended vertically from a fixed support. the spring has spring constant k = 8nm^-1 (5 points) A spri...
A spring is suspended vertically from a fixed support. the
spring has spring constant k = 8nm^-1
(5 points) A spring is suspended vertically from a fixed support. The spring has spring constant k 8N m-1. An object of mass m kg is attached to the bottom of the spring. The subject is subject to damping with damping constant β N m-1 s. Let y(t) be the displacement in metres at the end of the spring below its equilibrium position,...
A spring is suspended vertically from a fixed support. The spring has spring constant k=24 N m −1 k=24 N m−1 . An object...
A spring is suspended vertically from a fixed support. The
spring has spring constant k=24 N m −1 k=24 N m−1 . An object of
mass m= 1 4 kg m=14 kg is attached to the bottom of the spring. The
subject is subject to damping with damping constant β N m −1 s β N
m−1 s . Let y(t) y(t) be the displacement in metres at the end of
the spring below its equilibrium position, at time t...
(5 points) A spring is suspended vertically from a fixed support. The spring has spring constant k- 48 N m.An obj...
(5 points) A spring is suspended vertically from a fixed support. The spring has spring constant k- 48 N m.An object of mass kg is attached to the bottom of the spring. The subject is subject to damping with damping constant B N m-1 s. Let y() be the displacement in metres at the end of the spring below its equilibrium position, at timet seconds. (a) Give a value of β which would result in underdamping. /- Give your answer...
part a-d 2 A paint sprayer pumps air through a constriction in a 0.025- m diameter pipe, as shown in the figure. The flow causes the pressure in the constricted area to drop and paint rises up th...
part a-d
2 A paint sprayer pumps air through a constriction in a 0.025- m diameter pipe, as shown in the figure. The flow causes the pressure in the constricted area to drop and paint rises up the feed tube and enters the air stream. The speed of the air stream in the 0.025-m diameter sections is 5.00 m/s. The density of the air is 1.29 kg/m3, and the density of the paint is 1200 kg/m3. We can treat the...
5 points) A spring is suspended vertically from a fixed support. The spring has spring constant k=28 N m−1k=28 N m−1. An...
5 points) A spring is suspended vertically from a fixed support.
The spring has spring constant k=28 N m−1k=28 N m−1. An object of
mass m=14 kgm=14 kg is attached to the bottom of the spring. The
subject is subject to damping with damping constant β N m−1 sβ N
m−1 s. Let y(t)y(t) be the displacement in metres at the end of the
spring below its equilibrium position, at time tt seconds.
(5 poins) A spring is suspended vertically...
(5 points) A spring is suspended vertically from a fixed support. The spring has spring constant k=28 N m−1k=28 N m−1. A...
(5 points) A spring is suspended vertically from a fixed
support. The spring has spring constant k=28 N m−1k=28 N m−1. An
object of mass m=14 kgm=14 kg is attached to the bottom of the
spring. The subject is subject to damping with damping constant β N
m−1 sβ N m−1 s. Let y(t)y(t) be the displacement in metres at the
end of the spring below its equilibrium position, at time tt
seconds.
(a) Give a value of ββ which...
(5 points A spring is suspended vertically from a fixed support. The sp ng has spring constant k 35 N m 1 An object o...
(5 points A spring is suspended vertically from a fixed support. The sp ng has spring constant k 35 N m 1 An object of mass m 큼 kg is attached to the bottom of the spring The subject is subiect to damping with damping constant β N m 1 s Let t be the displacement in metres at the end of the s nng below its equilibrium position, at time t seconds. (a) Give a value of which would...
(5 points) A spring is suspended vertically from a fixed support. The spring has spring constant k 40 N m-1.An object o...
(5 points) A spring is suspended vertically from a fixed support. The spring has spring constant k 40 N m-1.An object of mass m- kg is attached to the bottom of the spring. The subject is subject to damping with damping constant β N m-1 s. Let y(t) be the displacement in metres at the end of the spring below its equilibrium position, at time t seconds. (a) Give a value of B which would result in underdamping. B4 Give...
Solve asap 3. During an experiment involving the flow of dry air at 30°C and 1...
Solve asap
3. During an experiment involving the flow of dry air at 30°C and 1 atm (101.325 kPa) at a free stream velocity of 5 m/s over a body covered with a layer of naphthalene. The incoming air is free of naphthalene, and thus the mass fraction of naphthalene in the free stream is zero (WAC). The vapor pressure of naphthalene at 30°C is 18.5 Pa and the diffusion coefficient of naphthalene in air at 30°C is 0.86 x...
A 2kg mass is suspended vertically from a spring attached to a fixed support. The spring satisfies Hooke's law with a spring constant of k 18 N m1. No damping is present. Gravity acts on the mass with a gravitational constant of g 10 m s2. An external force of R 24 sin (wt) Newton is applied to the mass, directed downwards, where t is the time in seconds since the mass was set in motion and w is a...
A spring is suspended vertically from a fixed support. the
spring has spring constant k = 8nm^-1
(5 points) A spring is suspended vertically from a fixed support. The spring has spring constant k 8N m-1. An object of mass m kg is attached to the bottom of the spring. The subject is subject to damping with damping constant β N m-1 s. Let y(t) be the displacement in metres at the end of the spring below its equilibrium position,...
A spring is suspended vertically from a fixed support. The
spring has spring constant k=24 N m −1 k=24 N m−1 . An object of
mass m= 1 4 kg m=14 kg is attached to the bottom of the spring. The
subject is subject to damping with damping constant β N m −1 s β N
m−1 s . Let y(t) y(t) be the displacement in metres at the end of
the spring below its equilibrium position, at time t...
(5 points) A spring is suspended vertically from a fixed support. The spring has spring constant k- 48 N m.An object of mass kg is attached to the bottom of the spring. The subject is subject to damping with damping constant B N m-1 s. Let y() be the displacement in metres at the end of the spring below its equilibrium position, at timet seconds. (a) Give a value of β which would result in underdamping. /- Give your answer...
part a-d
2 A paint sprayer pumps air through a constriction in a 0.025- m diameter pipe, as shown in the figure. The flow causes the pressure in the constricted area to drop and paint rises up the feed tube and enters the air stream. The speed of the air stream in the 0.025-m diameter sections is 5.00 m/s. The density of the air is 1.29 kg/m3, and the density of the paint is 1200 kg/m3. We can treat the...
5 points) A spring is suspended vertically from a fixed support.
The spring has spring constant k=28 N m−1k=28 N m−1. An object of
mass m=14 kgm=14 kg is attached to the bottom of the spring. The
subject is subject to damping with damping constant β N m−1 sβ N
m−1 s. Let y(t)y(t) be the displacement in metres at the end of the
spring below its equilibrium position, at time tt seconds.
(5 poins) A spring is suspended vertically...
(5 points) A spring is suspended vertically from a fixed
support. The spring has spring constant k=28 N m−1k=28 N m−1. An
object of mass m=14 kgm=14 kg is attached to the bottom of the
spring. The subject is subject to damping with damping constant β N
m−1 sβ N m−1 s. Let y(t)y(t) be the displacement in metres at the
end of the spring below its equilibrium position, at time tt
seconds.
(a) Give a value of ββ which...
(5 points A spring is suspended vertically from a fixed support. The sp ng has spring constant k 35 N m 1 An object of mass m 큼 kg is attached to the bottom of the spring The subject is subiect to damping with damping constant β N m 1 s Let t be the displacement in metres at the end of the s nng below its equilibrium position, at time t seconds. (a) Give a value of which would...
(5 points) A spring is suspended vertically from a fixed support. The spring has spring constant k 40 N m-1.An object of mass m- kg is attached to the bottom of the spring. The subject is subject to damping with damping constant β N m-1 s. Let y(t) be the displacement in metres at the end of the spring below its equilibrium position, at time t seconds. (a) Give a value of B which would result in underdamping. B4 Give...
Solve asap
3. During an experiment involving the flow of dry air at 30°C and 1 atm (101.325 kPa) at a free stream velocity of 5 m/s over a body covered with a layer of naphthalene. The incoming air is free of naphthalene, and thus the mass fraction of naphthalene in the free stream is zero (WAC). The vapor pressure of naphthalene at 30°C is 18.5 Pa and the diffusion coefficient of naphthalene in air at 30°C is 0.86 x...
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