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A syringe with a 4.0-cm-long needle is filled with water at20^\circ {\rm C}. Radius of thesyringe is 1.0 cm and the radius of the needle is 1.0mm. Velocityof the water flowing out is 10m/s. What is the gauge pressure ofthe water at the point P, where the needle meets the wider chamberof the syringe?
A 0.075 kg arrow is fired horizontally. The bowstring exerts an average force of 65 N on the arrow over a distance of 0.9 m. With what speed does the arrow leave the bow
a certain defibrillator sends 0.12 c of charge through the heart. the capacitor responsible for holding this charge
a airplane flies directly away from you. if you perceive its engine sound at 82 of the emitted frequency the planes
Two people are pulling a boat through the water as in the figurebelow. Each exerts a force of 600 N directed at a θ= 30.0° angle relative to the forward motion of theboat. If the boat moves with constant velocity, find the resistiveforce vector F exe..
when a 50-gram piece of aluminum at 100 degrees celsius is placed in water it loses 735 calories of heat while cooling
King Arthur's knights fire cannon from the top of the castle wall. The cannonball is fired at a speed of 60 m/s and an angle of 33. A cannonball that was accidentally dropped from the top of the castle wall hit the moat below in 1.80s.
At t = 0, the current through a 65.0 mH inductor is 52.0 mA and is increasing at the rate of 100 mA/s. How long does it take for the energy to increase by a factor of 10 from the initial value
Use Equation m
the mass of a copper atom is 5.55 x 10-25 kg and the density of copper is 8 920 kgm3 .a determine the number of atoms
two point charges q1=3.2 nC and q2=2.5 nC are located at the points M(x=-3m, y=0) and N(X=1m,y=2m) respectively. how much work must be done on the Electron to move it
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
At the instant a traffic-light turns green a car starts with a constant acceleration of 8.34 ft/s^2. How far beyond the starting point will the car overtake the truck
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