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A spaceship in outer space has a doughnut shape with 440-m outer radius. The inhabitants stand with their heads toward the center and their feet on an outside rim (see the figure).
Over what time interval would the spaceship have to complete one rotation on its axis to make a bathroom scale have the same reading for the person in space as when on Earth's surface?
Two pianos each sound the same note simultaneously, but they areboth out of tune. On a day when the speed of sound is 345 m/s,piano A produces a wavelength of 0.765 m, while piano B produces awavelength of 0.773 m. How much time separates successiveb..
a football player kicks a ball with a speed of 22.5 ms at an angle of 47deg above the horizontal from a distance of 35
A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory shown in the figure. The ball's position is shown at 1.0 s intervals until t =3.0 s. At t = 1.0 s the ball's velocity has components Vx= 1.5 m/s, Vy = 3.0 m/s.
The total charge that an automobile battery can supply without being recharged is given in terms of Ampere-hours. If each of the two headlights draws 1.7 A , find out the time before your battery is "dead"
A 1-kg wood ball and a 5-kg metal ball have identical shapes and sizes. They are dropped simultaneously from a tall tower. Each ball experiences the same drag force because both have the same shape.
Estimate the linear separation of two objects on the planet Mars that can just be resolved under ideal conditions by an observer on Earth who is:
A series RLC circuit contains the following components: R = 3.00 102 ?, L = 3.50 102 mH, C = 5.00 µF, and a generator with ?Vmax = 2.20 102 V operating at 80 Hz. Calculate the individual maximum voltages across the resistor, inductor
two sources of sound are located on the x axis and each emits power uniformly in all directions. there are no
The escape velocity of a bullet from the surface of planet Y is 1951 m/s. Calculate the escape velocity from the surface of planet X
A diverging lens with a focal length of -20 centimeter and a converging lens with a focal length of 17 centimeter have a common central axis. Estimate the height of the final image
A certain nuclear power plant has an electrical power output of 430 MW. The rate at which energy must be supplied to the plant is 1,510 MW. What is the thermal efficiency of the power plant
A square metal plate of edge length 12 cm and negligible thickness has a total charge of 7.2 x 10-6 C. Estimate the magnitude E of the electric field just off the center of the plate (at, say, a distance of 0.39 mm from the center) by assuming tha..
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