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An air bubble ascends from the bottom of a lake 15 m deep. The temperature at the bottom of the lake is 4oC, and near the surface it is 20oC. • What is the pressure on the bubble at a depth of 15m?
• If the bubble was originally 0.1m3 in size at the bottom of the lake, what would be the volume of the bubble at the top of the lake?
For nitrogen gas at 35 C calculate the vrms, the vp and the translational kinetic energy
A thin flat plate is installed in a water tunnel as a splitter. The plate is 0.3 m long and 1 m wide. The free stream speed is 1.60 m/s. laminar boundary layers form on both sides of the plate. The boundary-layer velocity profile is approximated as p..
An object is placed 3.9m from a lens with a focal length of -5.1 m. Determine the resulting image distance and magnification
Two crates, of mass 75 kg and 105 kg, are in contact and at rest on a horizontal surface. A 732 N force is exerted on the 75.00 kg crate.
A spring with a spring constant k of 18 N/m is stretched a distance of 12 cm (0.12 m) from its original unstretched position
A flight attendant pulls her 65N flight bag a distance of 388m along a level airport floor at a constant velocity. The force she exerts is 38 N at an angle of 51° above horizontal.
A 0.840-kg block oscillates on the end of a spring whose spring constant is k= 42.0 N/m . The mass moves in a fluid which offers a resistive force F=-bv, where b = 0.640 N*s/m. What is the fractional decrease in amplitude per cycle?
A parallel-plate capacitor C is charged up to a potential V with a charge of magnitude Q on each plate. What is the potential difference across the plates in terms of V
Relative to the ground, determine the angle of the velocity vector of the package just before impact.
A proton moves at 4.9x106 m/s in a magnetic field where B = 0.42 T. what force does the proton experience
Two 15cm long flat glass plates are separated by a T (10 micro m) thick spacer at one end, Find a relation among spacing between adjacent fringes delta x, lamda, L, and T
An electron moves in the positive x-direction a distance of 2.31 m in 2.85·10-8 s, bounces off a moving proton, and then moves in the opposite direction a distance of 1.53 m in 3.33·10-8 s.
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