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A 6cm diameter horizontal pipe gradually narrows to 4cm. Whenwater flows throught this pipe at a certain rate, the guagepressure in these two sections is 32.0kPa and 24kPa respectively. What is the volume rate of flow?
You are given a spherical mirror and wish to determine its properties. You place an object on its axis, Find the mirror\'s focal length
question1a 1.00-kg beaker containing 2.09 kg of oil density 916 kgm3 rests on a scale. a 1.99-kg block of iron is
A 1000-kg car is travelling west at 17.0 m/s toward an intersection. What is the angle of their velocity after the collision relative to the east direction
A system consists of a ball of mass M2 and a uniform rod of mass M1 and length d. Derive an expression for the angular momentum of the rod about point P before the collision
Robert has just bought a new model rocket, and is trying to measure its flight characteristics. how much work is done by the drag force on the rocket during its ascent
Is kinetic energy of a system conserved when two objects collide and stick together? What about the momentum of the system? What kind of collision is this (elastic or inelastic )?
Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale
A train 350 m long is moving on a straight track with a speed of 81.0 km/h. determine how long the train blocked the crossing. Disregard the width of the crossing
Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2. find the magnitude of the contact force between the two blocks
A large window measures 1.8m by 3.2m . At what rate will heat be conducted through the window when the room temperature is 27C and the outside temperature is 0C if the window consists of a single pane of glass 4.4mm thick. (Assume that there is a con..
for a sphere e falls off with 1r2 for an infinite line charge e falls off with 1r for an infinite sheet of charge its
A model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.8 g, which includes fuel mass of 13.2 g. What is the average exhaust speed of the engine
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