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1. Blood flows at 2.65 cm/s through an artery with inside diameter 1.45 mm. What's the flow speed in a section where the artery narrows to 1.36 mm in diameter?
2. Water flows at1.20×10-4m3/s through a 2.0-cm-diameter pipe, which then branches into two 1.0-cm-diameter pipes. What's the flow rate in the smaller pipes?
3. Water flows through a 1.2-cm-diameter pipe into a 250-L bathtub, which it fills in 6.0 min. What is the speed of the water in the pipe?
4. Oil flowing through a pipeline passes point A at 1.55m/s with gauge pressure 180 kPa. At point B, the pipe is 7.50 m higher in elevation and the flow speed is1.75,m/s. Find the gauge pressure at B.
5. Water flows at0.850 m/s from a hot water heater, through a 450-kPa pressure regulator. The pressure in the pipe supplying an upstairs bathtub 3.70 m above the heater is 414 kPa. What's the flow speed in this pipe?
An alpha particle (helium nucleus, charge 2e) starts from rest and travels a distance of 1.88 cm under the influence of a uniform electric field of magnitude 12.2 kV/m
A charge+ q is located at the origin, while anidentical charge is located on the x axisat x = + 0.50 m. A third charge of +2 q is located on the xaxis at such a place that the net electrostatic force on the charge at the origin doubles, its direct..
a horizontal force of 200n is applied to a 55-kg cart across a 10m level surface. if the cart accelerates at 2.0 ms2
There are devices that can apply sinusoidal stretch to a small segment of tissue. Calculate the steady-state response, y(t), to stretching an airway segment according to x(t) = 2cos(pi*t)u(t).
Electromagnetic interaction has classical electromagnetism as its classical limit. Is it possible to similarly describe strong and weak interactions classically?
Water is flowing at 100 lbm / s in a circular drain pipe of 1 m in diameter. This 1 meter diameter pipe comes to an abrupt constriction when the diameter suddenly reduces to 1.5 feet, Find the velocity of the water in both pipes
The force of repulsion that two like charges exert on each otheris 4.2 N. What will the force be if the distance between thecharges is increased to 4 times its original value?
A transformer has Nprimary = 2300 turns and Nsecondary = 680 turns. The primary potential is Vprimary = 120 Vrms. Determine the current in the secondary coil and the current in the primary coil
A 120 Volt battery is connected across two parallel metal plates of area 28.5 cm2 and separation 8.20 millimeter. Find what magnitude of magnetic field is needed so that the alpha particles emerge undeflected from between the plates
A proton accelerates from rest in a uniform electric field of 630 N/C. At one later moment, its speed is 1.60 m/s, Determine its kinetic energy at the end of this interval
a tropical fish aquarium has thick transparent windows made of a material whose refractive index is 1.742. what
a person pulls a crate with 120 n of force against 100 n of friction a distance of 5 meters. sketch a free body
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