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A straight horizontal garden hose 37.0 m long with an interior diameter of 2.10 cm is used to deliver 20oC water at the rate of 0.430 liters/s. Assuming that Poiseuille's Law applies, estimate the pressure drop (in Pa) from one end of the hose to the other.
A small piece of rock is weighed in air and then weighed while immersed in oil of density 800 kg/m3. If the weight in air is 21.5 N and the weight in the oil is 11.8 N, calculate the density of the rock
You want to create an electric field at location. where would you place an electron to produce this filed at the origin
A hand-driven tire pump has a 2.50 cm diameter piston and a maximum stroke of 34.0 cm. What average force do you exert on the piston, neglecting friction and gravity
Determine the angular speed of a speck of dirt located 1.97 cm from the center of a CD rotating inside a CD player at 263 rpm.
An ideal gas occupies a volume of 1.8 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container
Material found with a mummy in the arid highlands of southern Peru has a _6^14 text(C) activity per gram of carbon that is 74.0% of the activity percent initially
A siren has a frequency of 875 Hz when it and an observer are both at rest. The observer then starts to move and finds that the frequency he hears is 1251 Hz. What is the speed of the observer
Unpolarized passes through two polarizers that are oriented 65 degrees to each other. What is the orientation of the polarizers
A 1000 ? resistor is joined in series with a 600m H inductance and a 24 Volts battery. What is the time constant of the circuit
In alpha decay, an alpha particle (a helium nucleus consisting of two protons and two neutrons) escapes from a heavy nucleus, find the initial electric potential energy of the alpha particle
In an RLC circuit, the resistance is 10. ohms, the capacitive reactance is 30. ohms, and the inductive reactance is 50. Ohms. What is the circuit impedance
A block of mass m= 2.00kg is released from rest at h=0.500m above the surface of a table, at the top of a 30 degree incline. What is the velocity of the block as it leaves the incline
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