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A hypodermic syringe is attached to a needle that has an internal radius of 0.304 mm and a length of 3.05 cm. The needle is filled with a solution of viscosity 2.01 10-3 Pa · s; it is injected into a vein at a gauge pressure of 16.2 mm Hg. Ignore the extra pressure required to accelerate the fluid from the syringe into the entrance of the needle.
(a) What must the pressure of the fluid in the syringe be in order to inject the solution at a rate of 0.253 mL/s?
(b) What force must be applied to the plunger, which has an area of 1.05 cm2?
Suppose that an electron is trapped within a small region and the uncertainty in its position is 7.20 multiply.gif 10-15 m, find the minimum uncertainty in the electron's momentum
An LR circuit is hooked up to a battery as shown in the figure, with the switch initially open. The resistance in the circuit is R=120Ω, the inductance is L=4.10H, and the battery maintains a voltage of E=49V. At time t=0 the switch is closed.
A small plane is dropping emergency supplies to a fishing boat that has been blown out to sea. How far from the boat will the supplies land
Suddenly this mass is struck by another 2.00-kg object traveling along the x-axis at 3.00 m/s, and the two masses stick together.
A patient undergoing radiation therapy for cancer receives a 230-rad dose of radiation. Assuming the cancerous growth has a mass of 0.10kg , calculate how much energy it absorbs
Three point charges are fixed to rectangular coordinate system, Calculate the magnitude and direction of the net electrostatic force on the charge on the x-axis
A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. The tension in the wires is the equal, and they have the same mass.
What percentage of the power of the battery is dissipated across the internal resistance and hence is not available to the bulb
When responding to sound, the human eardrum vibrates about its equilibrium position. What is the maximum acceleration of the eardrum
In the physics lab a metal spring is stretched 10cm vertically downward by a 500 g mass attached to it. How much would the similar spring with the same attach mass stretn themon? The mass of the moon is 7.35 x 10 to the 22kg, gravity is 1.62 m/s a..
An air conditioner operating between 86°F and 72°F is rated at 4000 Btu/h cooling capacity. What horsepower is required of the air conditioner motor
A bar is used to lift a 100 kg block of concrete. The pivot is 1.00 m from the block. Find the mechanical advantage
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