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A woman hangs by her feet from "gravity boots" that support her weight from above. The average blood pressure in her aorta is 106 torr. What is the average blood pressure in a major artery in her ankle, at a point 1.07 m above the aorta?
A pencil is held perpendicular to the optical axis of a concave spherical mirror. The pencil is 81 cm from the center of the mirror, What is the magnification of the pencil's image
If you detect a frequency shift of 195.4Hz in the 4000-Hz bell of a bicycle as it approaches and then leaves you, how fast is the bicycle going
Two small nonconducting spheres have a total charge of 93.1 C. When placed 1.01 m apart, the force each exerts on the other is 11.5 N. What is the charge on each? What if the force was attractive?
A playground merry-go-round has a radius of 4.20 and a moment of inertia of 255, What is the work done by the child
A particular engine has a power output of 4.27 kW and an efficiency of 22.2%. The engine expels 7236 J of energy as heat in each cycle. Find the energy absorbed in each cycle
A radio antenna broadcasts a 1.0 MHz radio wave with 30.0 kW of power. What is the electric field amplitude at this distance
A 70 g metal block moving at 200 cm/s slides across a tabletop a distance of 83 cm before it comes to rest. how much does the temperature of the block rise
find the magnitude and direction of the impulse delivered to the ball by the floor.
A loop of width 0.2m and length 0.8m, and resistance 200ohms is pulled through a magnetic field of 0.4 T at 0.2 m/sec. What is force necessary to pull the loop
A 0.500 kg particle moving along a straight line with a position vector given by r = (-2.00t2 - t) i(hat) + 5.00 j(hat), with r in meters, Obtain the kinetic energy of this particle
A motor has an internal resistance of 12 ohms. When running, the motor has a back emf of 30 V and draws a current of 4.0 A. What is the supply voltage in this case
A dam holds back water. In the dam is a turbine that produces power with an efficiency of 0.73. what is the velocity of the water leaving the turbine
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