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(a) Calculate the mass flow rate (in grams per second) of blood (? = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0 cm2 if the flow speed is 30 cm/s.
g/s
(b) Assume that the aorta branches to form a large number of capillaries with a combined cross-sectional area of 3.0 ? 103 cm2. What is the flow speed in the capillaries?
cm/s
A galvanometer with a full-scale sensitivity of 700?A and a coil resistance of 58? is to be used to build an ammeter designed to read 10A at full scale
A positive point charge Q1 = 5.0*10-5 C is fixed at the origin of coordinates, Find the location(s) where the total electric field is equal to zero
You and a friend each drive 67 km. You travel at 88.1 km/h, your friend at 952.6 km/h. How long would your friend wait for you at the end of the trip.
In proton-beam therapy, a high-energy beam of protons is fired at a tumor, What is the total charge of the protons that must be fired at the tumor to deposit the required energy
Three point charges Q1 = 2.2 mu or micro C, Q2 = 4.2 mu or micro C and Q3 = 3.2 mu or micro C, are arranged as shown
At its Ames Research Center, NASA uses its large "20-G" centrifuge to test the effects of very large accelerations (hypergravity) on test pilots and astronauts. In this device, an arm 8.84m long rotates about one end in a horizontal plane, and the..
At t1 = 5.00 s, the acceleration of a particle moving at constant speed in counterclockwise circular motion is a1=(2m/s^2)i + (9m/s^2)j At t2 = 6.00 s (less than one period later), the acceleration is a2= (9m/s^2)i - (2m/s^2)j The period is more t..
A diatomic gas does 320 J of work and also absorbs 600 cal of heat. What is the change in internal energy of the gas?
a rifle with a mass of 1.2kg fires a bullet with a mass of 6.0g (0.006kg). What is the momentum of the bullet after the rifle is fired
Determine the magnitude of the total initial momentum of the two-block system. Find , the magnitude of the final velocity of the two-block system. What is the change in the system's kinetic energy due to the collision?.
A frictionless pulley has the shape of a uniform solid disk of mass 6 and radius 25 . A 1.90 stone is attached to a very light wire that is wrapped around the rim of the pulley.
suppose an electric motor continuously operating with average power 4.65 kW runs the pump. Find its efficiency.
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