Cedric gathered information about space objects from a reliable website. The information is shown in the table. Help Cedrick identify space object A. Space Object A Space Object B Space Object C
Composition rocks and some metals mostly frozen nitrogen mostly hydrogen and helium gas, no solids
Orbital period 3–6 years 247.68 years 226 million years
Space object A is
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In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm