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Mercury flows through a horizontal pipe 0.80 cm in diameter and 0.5 m long. If the pressure drop from one end of the pipe to the other is 1.10 x10^4 Pa, what is the rate of flow through the tube? (in liters per second L/s)
A 12.0-{rm kg} box resting on a horizontal, frictionless surface is attached to a 5.00-{rm kg} weight by a thin, light wire that passes over a frictionless pulley). The pulley has the shape of a uniform solid disk of mass 2.40 {rm kg} and diameter 0...
A hotel elevator ascends 110 {rm m} with a maximum speed of 4 {rm m/s}. Its acceleration and deceleration both have a magnitude of 1.20 {rm m/s^2}.
Graph the power of the laser when it's on. b) Compute the energy in the pulse. c) Compute the number of photons in the pulse.
Objective questions based on force and acceleration.
If the string is 9.5 long, has a mass of 30 and is pulled taut with a tension of 8.50, how much time does it take for a wave to travel from one end of string to the other?
A wire coil is connected to a DC power supply of 12.0 volts. The current in the coil is measured to be 375 mA. What is the resistance of the wire coil
what time delay Delta t is necessary. A boxcar of mass 600 tons at rest becomes uncoupled on a 5.00 grade. If the track is considered to be frictionless, what speed does the boxcar have after 15 seconds.
suppose that no heat is lost to the surroundings, what is the situation when termal equilibrium is reached.
A copper block rests 25.5cm from the center of a steel turntable. The coefficient of static friction between block and surface is 0.52. The turntable starts from rest and rotates with a constant angular acceleration of 0.475 rad/s2. After what tim..
Which color has the highest index of refraction
A total charge of Q is deposited on a solid metal sphere of radius R. This charge distributes itself uniformly over the surface, yielding an electrostatic field E~ perpendicular =(sigma / e0) n^ just outside the sphere and E~ = 0 everywhere insid..
Two capacitors are connected in parallel across the terminals of a battery. One has a capacitance of 2.0 µF, What is the voltage of the battery
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