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Suppose that, because of an aneurism, the cross-sectional area, A(1), of a normal portion of a blood vessel increases to a value A(2) = 1.7A(1). The speed of blood (density 1060 kg/m^3) through the normal portion is 0.40 m/s. Assuming that the blood vessel is horizontal (the person is lying down), determine the amount by which the pressure in the enlarged region exceeds that in the normal region.
Communication satellites are placed in geosynchronous orbit, i.e., in circular orbit such that they complete one full revolution about the earth in one sidereal day.
A 1.20 liter flask contains a certain quantity of ideal gas at 305 K. next an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its original value. What is the final temperature.
What is the magnitude of the force of upper leg on the lower leg at the knee joint.
What was the speed of the car when the brakes were applied.
What is the magnitude of the force on an electron that is in the region between the plates at a point accurately 2.52 mm from the positive plate
Find the energy, in joules, of one quantum of energy for an atomic oscillator in a block of aluminium.
A thin 12 cm long solenoid has a total of 490 turns of wire and carries a current of 1.9 A. find the magnitude of the field inside near the center.
A projectile is fired at such an angle from the horizontal that vertical component of its velocity is 49 m/s. The horizontal component of its velocity is 61 m/s.
The amplitude of the electric field of an electromagnetic wave is 197 V/m.
Assume that it takes 2.30 kg of oxygen to burn 1.00 kg of coal. (The actual amount varies with the type of the coal). What is the total mass of the reagents used in the combustion all through the 30 days.
Find the resistance between points A and B. A car starts from rest on a curve with a radius of 130 m and accelerates at 0.500 m/s^2. How many revolutions will the car have gone through as the magnitude of its total acceleration is 2.50 m/s^2.
In Millikan's experiment, an oil drop of radius 1.85 μm and density 0.852 g/cm3 is suspended in chamber C whilst a downward electric field of 0.62 × 10^5 N/C is applied. Find the charge on the drop, in terms of e.
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