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1. Blood flows in an aorta of radius 4.25mm at 35.0cm/s. Calculate the volume flow rate.
2. Although the cross-sectional area of a capillary is much smaller than that of the aorta, there are many capillaries, so their total cross-sectional area is much larger. If all the blood from the aorta flows into the capillaries and the speed of flow through the capillaries is 0.95mm/s, calculate the total cross-sectional area of the capillaries.
A father racing his son has 1/2 the kinetic energy of the son, who has 1/3 the mass of the father, What are the original speeds of (b) the son
Now consider an atom consisting of two electrons, each of charge -e, embedded in a sphere of charge +2e and radius R. In equilibrium, each electron is a distance d from the center of the atom (the figure (Figure 1) ). Find the distance d in terms of ..
A bicycle has wheels with a diameter of 0.650 m. Find the linear acceleration of the bicycle
A driver travels 10 km east, 20 km north and 50 km in a direction 30 degrees south of west. What is the drivers average velocity if the trip takes 90 minutes
A 1128 kg car and a 2210 kg pickup truck approach a curve on the expressway that has a radius of 272 m. find the normal force on the truck to the highway surface
After they have exchanged charge and are placed 24 cm apart the magnitude of the electric force is now 3.6 Newtons. How much charge, in micro-coulombs, was exchanged
Electrons in a photoelectric effect experiment emerge from an aluminum surface with a max kinetic energy of 1.30 eV. What is the wavelength of the light
A uniform electric field of magnitude 405 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.60 cm. What is the work done by the field on the electron?
Positive electric charge is distributed in the shape of an infinitely long insulating cylinder of radius R and volumetric charge density ?=?0(1-r/R), Find an expression for the linear charge density
A 5.7x10^2 kg hot-air balloon takes off from rest at the surface of the earth. The wind and lift forces take the balloon up, doing +9.7 x 10^4 J of work on the balloon in the procedure. At what height above the surface of the earth does the balloo..
A singly charged ion of unknown mass moves in a circle of radius 14cm in a magnetic field of 8.2 T. The ion was accelerated through a potential difference of 9kV before it entered the magnetic field.What is the mass of the ion.
A 0.157kg ball is thrown straight up from 1.94m above the ground. Its initial vertical speed is 9.60 m/s. A short time later, it hits the ground. What is the total work done by the force of gravity during that time.
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