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Problem: Water flows through a 2.5cm -diameter pipe at 1.9m/s. If the pipe narrows to 1.5cm diameter,
A- What is the flow speed in the constriction?
Ans: v=____m/s
Please use great detail in explaining the solution. Thanks.
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is 96.3 m. How tall is the antenna
A block slides down an inclined plane of slope angle ? with a constant velocity. How far up the incline will it move before coming to rest
Could you please compute the radius that a loop should have so that the magnetic energy density at its center is equal to 6 mJ/m3 when a current I = 20 Amp passes through the loop
The two forces in each pair could have different physical origins (for instance, one of the forces could be due to gravity, and its pair force might be due to friction or electric charge).
One 20-year-old twin brother takes a space trip with a speed of0.80c for 30 years according to a clock on the spaceship. Upon returning to the Earth, what is his own age and the age of the Earth-based twin brother?
suppose a trucks mass is 2000 kg while the cars mass is 1000kg. and suppose the truck slows down by 5 ms during the
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A model rocket blasts off and moves upward with anacceleration of 12m/s^2 until it reaches a height of 27m, at whichpoint its engine shuts off and it continues it flight in freefall. what is the max height attained by the rocket?
A person walks first at a constant speed of 4.90 m/s along a straight line from point A to B point and then back along the line from B to A at a constant speed of 3.30 m/s. What is her average velocity over the entire trip
A bullet of mass 6 g strikes a ballistic pendulum of mass 1.8 kg. The center of mass of the pendulum rises a vertical distance of 12 cm. Assuming that the bullet remains embedded in the pendulum, Compute the bullet's initial speed, m/s
An electron is accelerated inside a parallel plate capacitor. The electron leaves the negative plate with a negligible initial velocity and then after the acceleration it hits the positive plate with a final velocity ?. The distance between the pl..
A spring has a spring constant of 578N/m. When used tosuspend an object in the air, the spring stretches by0.0640m. What buoyant force acts on the object
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