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A hypodermic syringe is attached to a needle that has an internal radius of 0.301 mm and a length of 3.05 cm. The needle is filled with a solution of viscosity 2.04 10-3 Pa · s; it is injected into a vein at a gauge pressure of 16.1 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 1.02 cm2?
A 7 g bullet has a speed of 270 m/s and embeds itself into a 600 g block. How far does the block slide after the collision before coming to rest
A copper block is suspended from a wire, as in part 1 of the drawing. A container of mercury is then raised up around the block, Find the ratio of the fundamental frequency of the wire in part 2 to the fundamental frequency in part 1
Object O1 is 14.5 cm to the left of a converging lens with a 12.0-cm focal length. What is the focal length of the second lens
An LC circuit has a 7.88 mH inductor. The current has its maximum value of 0.73 A at t=0 s, What is the value of the capacitance
When a test charge q0 = 6 nC is placed at the origin, it experiences a force of 8 ? 10-4 N in the positive y direction. What is the electric field at the origin
A wire loop of radius 0.50 m lies so that an external magnetic field of magnitude 0.30 T is perpendicular to the loop. Find the magnitude of the average induced emf in the loop
What is the magnitude of the induced electric field 0.2070cm from the axis of the solenoid? Give your reply in Volts/meter in scientific notation to three significant digits.
A 0.244 H inductor is connected to a capacitor and a 44.5 ? resistor along with a 37.2 Hz, 46.1 V generator. Find the voltage drop across the resistor at resonance
A sample of 23892U is decaying at a rate of 455 decays/s . The half-life is 4.468E9yr. compute the mass of the sample
A rectangular fish tank measures 30 cm by 75 cm by 40 cm high. The tank is filled with water to a depth of 37 cm. What is the total force of the water on the bottom
In the typical X-ray lamp. The electrons are accelearated in the potential difference of 10000V before hitting the water cooled electrode. Find the shortest wavelength of X-rays produced in this lamp.
A 2.3 kg mass is released from rest and slides down to a spring with known spring constant of 10X10^3 N/m, compressing it by 30 cm in the process. From what vertical height was the mass released
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