Physics, 30.11.2019 02:31, mathhelpneeded66
While taking a shower, you notice that the shower head is made up of 36 small round openings, each with a radius of 1.4 mm. you also determine that it takes 7.0 s for the shower to completely fill a 1- liter container you hold in the water stream. the water in your house is pumped by a pump in the basement, 6.2 m below the level of the shower head. the pump maintains an absolute pressure of 1.6 atmospheres. neglect viscosity. use g = 9.8 m/s/s, and 1 atmosphere = 101,300 pa.
[1 point] (a) what is the total area of the openings in the shower head?
[2 points] (b) at what speed is the water emerging from the holes?
cconnected to the pump (assume it has a constant cross-sectional area)?
[2 points] (c) at what speed is the water flowing through the pipe
[2 points] (d) what is the radius of the pipe?
[1 point] (e) if you covered up six of the holes in the shower head with your thumb, with what speed would you expect the water to emerge from the remaining holes?
Answers: 3
Physics, 23.06.2019 02:20, Kana81
3. a particle with initial velocity v⃗ 0=(5.85×103m/s)j^ enters a region of uniform electric and magnetic fields. the magnetic field in the region is b⃗ =−(1.35t)k^. you can ignore the weight of the particle. a. calculate the magnitude of the electric field in the region if the particle is to pass through undeflected, for a particle of charge +0.640 nc.
Answers: 2
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