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To monitor the breathing of a hospital patient, a thin belt (a 200-turn coil) is placed around the patient's chest. Suppose that the belt has a radius of 20cm and when the patient inhales, the belt expands to a radius of 20.5cm. The magnitude of the Earth's magnetic field is 50.0μT and makes an angle of 50o with the normal to the coil. Assuming that a patient takes 1.80 s to inhale, find the average induced emf in the coil during this time. What is the induced emf when the person exhales over the same time interval? What would a voltage versus time trace look like on a monitor screen as the person inhales and exhales?
A 0.100 kg meterstick is supported at its 40 cm mark by a string attached to the ceiling. A 0.700 kg mass hangs vertically from the 5 cm mark.
The radius of Mars about one half that of Earth, and its mass is about 1/10. Using this information, estimate the acceleration due to gravity near the surface of Mars in m/s2
Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0-container. Calculate the partial pressure of each gas in the container
Three horizontal forces (the only horizontal ones) act on a box sitting on a floor. One (call it F1) acts due east and has a magnitude of 150lb, Find the magnitude of the third force
A flight attendant pulls her 75 N flight bag a distance of 305 m along a level airport floor at a constant velocity. Find the work she does on the flight bag
The morning sounding shows an is othermal layer from 800 to 700 mbat -11oC, and the temperature in the layer from 390 to250 mb decreases steadily from -47 to -55oC. What is the thickness of these layers?
An object with total mass mtotal = 15.6 kg is sitting at rest when it explodes into three pieces. One piece with mass m1 = 4.8 kg moves up, What is the mass of the third piece
A wire of diameter 0.65mm and length 6.0m stretches 10mm when 5.5kg is hung from it. what is the effective spring constant for the stretching wire
A skier (m=63.0 kg) starts sliding down from the top of a ski jump with negligible friction and takes off horizontally. If h = 6.10 m and D = 12.2 m, find H.
An electron accelerated from rest through the voltage of 500V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 17cm, what is the magnitude of magnetic field.
A 200.0 m long thin wire carries a line charge density ! = 358.0 nC/m. Find the potential difference between points 5.0 m and 6.0 m on a perpendicular radius to the axis of the wire, provided the perpendicular radius is not near either end of the ..
A heat engine operates as a reversible Carnot cycle transfers 6.0 kW of heat from a reservoir at 1000 K, Calculate the power output of this engine
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