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A liquid flows through a 2-cm-diameter pipe at a rate of 20 L every minute. Assume a laminar flow and estimate the pressure drop over 20 m of length in the horizontal pipe for
(a) water at 40-C,
(b) SAE-10 oil at 20-C, and
(c) glycerin at 40-C.
Decide if a laminar flow is a reasonable assumption.
An empty hollow metal sphere has a potential of +170 V with respect to ground (defined to be at V = 0) and has a charge of 1.1 10-9 C
A 0.57-mH inductor and a 131-? resistor are placed in series with a 24-V battery. What is the maximum energy stored in the inductor
A proton travels with a speed of 4.90 106 m/s at an angle of 55° with the direction of a magnetic field of magnitude 0.190 T in the positive x-direction. What is the magnitude of the magnetic force on the proton
A physics student has designed a winter game. He has a platform 4.6 meters high with a rope tied to a tree at the same height, how fast are the boys and the sled moving after they "collide"
A 1.0--diameter oil droplet (density 900 kg/m^3) is negatively charged with the addition of 28 extra electrons. What is the surface charge density of the plane
A down jacket has a surface area of 0.87 m2 and is filled with a 4.4 cm thick layer of down, At what rate is heat conducted through the coat
A model rocket is launched straight upward with an initial speed of 49.4 m/s. It accelerates with a constant upward acceleration of 2.25 m/s2 until its engines stop at an altitude of 187 meter. Compute the maximum height reached by the rocket
A block of mass m = 2.60 kg is pushed a distance d = 2.90 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N directed at an angle ? = 29.0° below the horizontal
It is know that a certain hydrogen atom has a definite value of l. What does this statement tell you about the angularmomentum. What are the allowed energies of consistent with this information?
two capacitors c1 22.0 microf and c2 40.0 microf are connected in series and a 15.0 v battery is connected across
A square current loop 5.5cm on each side carries a 460mA current. The loop is in a 1.6T uniform magnetic field. What is the magnitude of the torque on the current loop
A 554-kg satellite is in a circular orbit about Earth at a height above Earth equal to Earth's mean radius. Find the satellite's orbital speed
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