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Water is circulating through a closed system of pipes in a two floor apartment. On the first floor, the water has a gauge pressure of 3.4 x 105 Pascal and s speed of 2.1m/s. However, on the second floor, which is 4.0 meter higher, the speed of the water is 3.7 m/s. The speeds are different because the pipe diameters are different. Find the gauge pressure of the water on the second floor?
A hardworking ant must supply 0.00805 N to pull a small piece of fruit at constant velocity over a distance of 9.60 cm up a small hill to the entrance of the colony. calculate the work done by the ant by pulling the piece of fruit up the hill
If the rope tension is 120 N, and if the rope does 2500 J of work on the box, what angle theta does the rope make with the horizontal
A particular radioactive source produces 150 mrad of 2 MeV gamma rays per hour at a distance of 1.0 m. How long could a person stand at this distance before accumulating an intolerable dose of 1 rem?
An RL circuit has a V=7V battery, a R=15000Ohm resistor, and a L=0.7H, connected in series with a switch. The switch is left open for several seconds and then closed at time t = 0.
A car goes around a curve on a road that is banked at an angleof 30.0°. What is the radius of the curve
A thin spherical shell made of plastic carries a uniformly distributed negative charge -7e-10 coulombs (indicated as -Q1 in the diagram). Two large thin disks made of glass carry uniformly distributed positive and negative charges 1.7e-05 coulombs an..
a 100j of heat energy are transferred to 20g of mercury. by how much does the temperature increase?b how much heat is
a disk is rotating about its central axis like a merry-go-round. the angular position deltat of a reference line one
A model rocket is launched from rest with an upward acceleration of 6.00 m/s^2 and, due to a strong wind, a horizontal acceleration of 1.50 m/s^2. How far is the rocket from the launch pad 6.00s later when the rocket engine runs out of fuel?
An aluminum bar of mass 2.00kg at 300 C is thrown into a lake. The temperature of the water in the lake is 15.0 C; what is the change in total entropy Delta
On days of fair weather, the atmospheric electric field of the Earth is about 116 N/C; What is the surface charge density on the ground
A light spring with a force constant of 13N/m is connected to a wall and a 1.2-kg toy bulldozer. When the electric motor in the bulldozer is turned on, What is the numerical value of this coefficient of friction
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