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The intake in the figure has cross-sectional area of 0.72 m2 and water flow at 0.49 m/s. At the outlet, distance D = 180 m below the intake, the cross-sectional area is smaller than at the intake and the water flows out at 9.4 m/s. What is the pressure difference between inlet and outlet?
a cylindrical resistor of radius 1.0 mm and length of 1.0 cm has resistance of 10 ohms. calculate the uniform current density in the resistor when the power of the resistor is 1 watt
Two 6 g spheres are charged equally and placed 1.5 cm apart. When released, they begin to accelerate at 130 m/s^2. What is the magnitude of the charge (in Coloumbs) on each sphere
A screw with 25 threads per centimeter is driven 1.49 cm into its fixture in 12.4 s with a cordless electric screwdriver. What is the average angular speed of the screwdriver
A boat takes 3.30 hours to travel 40.0 km down a river, then 5.00 hours to return. How fast is the river flowing
How many cm/s2 of acceleration should correspond to 1 unit of ramp slope if: •a graph of number of paper clips needed to maintain equilibrium vs. what would be the acceleration of the cart
A 0.27 kg rock is thrown perpendicularly upward from the top of the cliff that is 32 m high. When it hits the ground at the base of cliff, the rock has a speed of 29 m/s. suppose that air resistance can be ignored, find out A) initial speed of the ro..
If a drop of mass 1.49061e-12 kg remains stationary in an electric field of 1.1e6 N/C, How many extra electrons are on this particular oil drop (given the presently known charge of the electron
What is the distance between the particles at this time? The Coulomb constant is 8.95755 × 109 N • m2/C2, the elemental charge is 1.6721 × 10-19 C, and the acceleration due to gravity is 9.8 m/s2.
q1. from the shape of total energy vs. time plot what can you conclude about the conservation of mechanical energy in
A rugby player passes the all 7.00m across the field, where it is caught at the same height as it left his hand. How long did this pass take
What is the Bens kinetic energy
A rollercoaster car has a mass of 600 kg when fully loaded with passengers. what is the force of the track on the car at the top of the hill
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