06:01Analyzing the Apollo 15 Feather and Hammer Drop - A Basic, Introductory Free-Fall ProblemFlipping Physics138views
11:30Gravitational Acceleration Physics Problems, Formula & EquationsThe Organic Chemistry Tutor440views
Multiple ChoiceYou stand on the surface of a mysterious planet with a mass of 6×10<sup>24</sup>kg and measure the surface gravity to be 7 m/s<sup>2</sup>. What must the radius of the planet be?448views3rankHas a video solution.
Multiple ChoiceHow far would you have to be above Earth's surface for g to be ½ of its surface value?436views2rankHas a video solution.
Multiple ChoiceSuppose the lengths of your upper arm, forearm, and hand are 30 cm, 25 cm, and 15 cm, respectively. Using the information on centers of mass from Figure 7.31, calculate the torque from gravity on your arm (including the hand) when it is outstretched, horizontally.256views
Textbook QuestionA recently discovered extrasolar planet appears to be rockier and denser than earth. It is 16 times as massive as earth, but its diameter is only twice that of earth. What is the free-fall acceleration on the surface of this planet?524viewsHas a video solution.
Textbook QuestionWhat is the free-fall acceleration at the surface of (a) the moon and (b) Jupiter?145views1rankHas a video solution.
Textbook Question(a) At what height above the earth is the free-fall acceleration 10% of its value at the surface?209viewsHas a video solution.
Textbook QuestionTitania, the largest moon of the planet Uranus, has 1/8 the radius of the earth and 1/1700 the mass of the earth. (b) What is the average density of Titania? (This is less than the density of rock, which is one piece of evidence that Titania is made primarily of ice.)683viewsHas a video solution.
Textbook QuestionTitania, the largest moon of the planet Uranus, has 1/8 the radius of the earth and 1/1700 the mass of the earth. (a) What is the acceleration due to gravity at the surface of Titania?629viewsHas a video solution.
Textbook QuestionThe mass of Venus is 81.5% that of the earth, and its radius is 94.9% that of the earth. (b) If a rock weighs 75.0 N on earth, what would it weigh at the surface of Venus?442viewsHas a video solution.
Textbook QuestionThe mass of Venus is 81.5% that of the earth, and its radius is 94.9% that of the earth. (a) Compute the acceleration due to gravity on the surface of Venus from these data.742viewsHas a video solution.
Textbook QuestionAt what distance above the surface of the earth is the acceleration due to the earth's gravity 0.980 m/s^2 if the acceleration due to gravity at the surface has magnitude 9.80 m/s^2 ?1177viewsHas a video solution.
Textbook QuestionYou decide to visit Santa Claus at the north pole to put in a good word about your splendid behavior throughout the year. While there, you notice that the elf Sneezy, when hanging from a rope, produces a tension of 395.0 N in the rope. If Sneezy hangs from a similar rope while delivering presents at the earth's equator, what will the tension in it be? (Recall that the earth is rotating about an axis through its north and south poles.)1089views1commentsHas a video solution.
Textbook QuestionAsteroid 253 Mathilde is one of several that have been visited by space probes. This asteroid is roughly spherical with a diameter of 53 km. The free-fall acceleration at the surface is 9.9 ✕ 10⁻³ m/s². What is the asteroid's mass?142viewsHas a video solution.
Textbook QuestionSuppose we could shrink the earth without changing its mass. At what fraction of its current radius would the free-fall acceleration at the surface be three times its present value?92viewsHas a video solution.
Textbook QuestionA starship is circling a distant planet of radius R. The astronauts find that the free-fall acceleration at their altitude is half the value at the planet's surface. How far above the surface are they orbiting? Your answer will be a multiple of R.62viewsHas a video solution.
Textbook QuestionYou have been visiting a distant planet. Your measurements have determined that the planet's mass is twice that of earth but the free-fall acceleration at the surface is only one-fourth as large. (a) What is the planet's radius?90viewsHas a video solution.