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A 6.7 centimeter diameter horizontal pipe gradually narrows to 4.1 centimeter. When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 33.0 kPa and 26.0 kPa, correspondingly. Evaluate what is the volume rate of flow?
Calculate the entropy change for the following system: One kilogram of 80 C aluminum is placed into 2L of 20 C water in a container with negligible heat capacity and adiabatic walls. The water and aluminum reach thermal equilibrium. Assume specific h..
an electric heater is used to heat a room of volume 66 m3. air is brought into the room at 5degc and is completely
after walking across a dry carpet theres a potential difference of 5500 v between your hand and the doorknob. as you
we consider a man of mass m 81 kg using crutches. the crutches each make an angle of 28 degrees with the vertical.
1 a conducting sphere of radius 2.00 cm 0.020 m has a charge of 1 micro c deposited on it. what is the magnitude of the
A 4.4 kg mess kit sliding on a frictionless surface explodesinto two 2.2 kg parts, one moving at 4.2 m/s, due north, What is the original speed of the mess kit
Two people carry a heavy electric motor by placing it on a light board 1.55 m long. One person lifts at one end with a force of 420 N, Where along the board is its center of gravity located
a charged particle of mass m and charge q is suspended from a light thread in a region of space where there is a
A ball of mass 0.55 kg moves around a vertical circle of radius 1.2 m. Find the tension of the string T
A pilot claims to have seen a UFO moving initially at the speed of about 440 m/s in an easterly direction and then, in a tie interval of only 1.0s turning 45 degrees and moving souutheast at 440 m/s
A researcher observes hydrogen emitting photons of energy 2.55eV. What are the quantum numbers of the two states involved in the transition that emits these photons
A neutron with mass of approximately 1.00 u and speed of 100 m/s strikes the nucleus of a lead atom head-on. how fast will each particle move after the impact
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