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Chapter 13: Q. 5 (page 353)
A space station astronaut is working outside the station as it orbits the earth. If he drops a hammer, will it fall to earth? Explain why or why not.
It will NOT fall to earth, rather it will be floating in space.
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A space station orbits the sun at the same distance as the earth but on the opposite side of the sun. A small probe is fired away from the station. What minimum speed does the probe need to escape the solar system?
An earth satellite moves in a circular orbit at a speed of . What is its orbital period?
While visiting Planet Physics, you toss a rock straight up at 11 m/s and catch it 2.5 s later. While you visit the surface, your cruise ship orbits at an altitude equal to the planet’s radius every 230 min. What are the (a) mass and (b) radius of Planet Physics?
Two spherical asteroids have the same radius . Asteroidhas mass and asteroid has mass The two asteroids are released from rest with distance between their centers. What is the speed of each asteroid just before they collide?
Hint: You will need to use two conservation laws.
A small moon orbits its planet in a circular orbit at a speed of . It takes to complete one full orbit. What is the mass of the planet?
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