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A spherical bubble of air is introduced into a vein in the ankle. The diameter o this bubble is 0.5mm. As the bubble returns with the blood stream towards the heart, the pressure in the blood decreases due to the decreasing height of the column of blood above it. If the pressure in the ankle is 2.77 X10^5 dyn/cm^2, what is the diameter of the bubble after it has risen 1.4m? Suppose that the density of blood is 1.05g/cm^3 and the only reason the pressure changes is due to the weight of the blood.
A hoop of mass M and radius R is rotating about an axle at the edge of the hoop. what is the speed of the lowest point on the hoop
A chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor. Suppose the victim falls 0.50m, the masss that moves downward is 70kg, and the collision on the floor lasts 0.082s.
A billiard ball, initially at rest, is given a sharp impulse by a cue. The cue is held horizontally a distance h above the centerline. determine where is the radius of the ball
Two Earth satellites, A and B, each of mass m=950kg, are launched into circular Orbits around the Earth’s center. Satellite A orbits at an altitude of 4200 km, and satellite B orbits at an altitude of 12,600km. What are the kinetic energies of the t..
a monatomic ideal gas is thermally insulated so no heat can flow between it and its surroundings. is it possible for
A 1000.0 kg car traveling at 50.0 miles per hour on a long, What was the average coefficient of sliding friction between the car's tires and the road
A cable attached to a small tractor pulls a barge through a canal lock. Find what force moves the barge along the lock
A refrigerator moves energy from a cold reservoir (the inside of the refrigerator) to a hot reservoir (the kitchen), but some extra energy is required in the form of work done by some outside agent (typically a compressor motor).
A ball starts at a point 30 m above the bottom of a dip with of 25 m/s. overlook friction, what will be the speed of the ball at the top of the next slope, which is 45 m above the bottom of the dip.
a truck is traveling at 11.1 ms down a hill when the brakes on all four wheels lock. the hill makes an angle of 12.0deg
A bumper car with mass m1 = 103 kg is moving to the right with a velocity of v1 = 5 m/s. A second bumper car with mass m2 = 81 kg is moving to the left with a velocity of v2 = -3.3 m/s. The two cars have an elastic collision. Assume the surface is fr..
In spherical coordinates, the electrical field of a charge distribution is given by E = Be^(-r/Z) r-hat, where the lengthscale Z is a positive number and B is a constant.
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