A binary star system has two stars, each with the same mass as our sun, separated by 1.30×10¹2 m. A comet is very far away and essentially at rest. Slowly but surely, gravity pulls the comet toward the stars. Suppose the comet travels along a straight line that passes through the midpoint between the two stars. What is the comet's speed at the midpoint? Express your answer with the appropriate

A binary star system has two stars, each with the same mass as our sun, separated by 1.30×10¹2 m. A comet is very far away and essentially at rest. Slowly but surely, gravity pulls the comet toward the stars. Suppose the comet travels along a straight line that passes through the midpoint between the two stars. What is the comet's speed at the midpoint? Express your answer with the appropriate

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter13: Gravitation

Section: Chapter Questions

Problem 37P: Two planets in circular orbits around a star have speed of v and 2v . (a) What is the ratio of the...

See similar textbooks

Similar questions

Part A Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed 2.1×104 m/s when at a distance of 2.6x1011 m from the center of the sun, what is its speed when at a distance of 4.0x1010 m. Express your answer in meters per second. νη ΑΣφ ? m/s
Europa orbits Jupiter at a distance of 6.7 x 108 m from Jupiter's cloudtops (the surface of the planet). If Jupiter's mass is 1.9 x 1027 kg and radius is 6.8 x 107 m, what is the speed of Europa as it orbits in m/s? Round to the nearest hundredth. Don't worry about putting units, just put the number.
Planet A has mass 3M and radius R, while Planet B has mass 4M and radius 2R. They are separated by center-to-center distance 8R. A rock is released halfway between the planets’ centers at point O. It is released from rest. Ignore any motion of the planets.b. Calculate the magnitude of the rock’s acceleration, in meters per second squared, for M = 9.2×1023 kg and R = 5.7×106 m.c. Toward which planet is the rock’s acceleration directed? Planet A Planet B Not enough information
Assume that planet A has radius RA and mass MA, and planet B has radius Rg and mass Mg. Let ga and gg are the accelerations due to gravity at their surfaces, respectively. If MA = Mg, and RA = 2Rg The ratio (g,/Ba) is: A. 1 B. 2 C. 4 D. 0.5 E. 0.25
The center of a moon of mass m = 8 × 1023 kg is a distance D = 97 × 105 km from the center of a planet of mass M = 10.9 × 1025 kg. At some distance x from the center of the planet, along a line connecting the centers of planet and moon, the net force on an object will be zero. a. Derive an expression for x. b. Calculate x in kilometers, given the variables in the beginning of the problem.
but your architects use the units You have negotiated with the Omicronians for a base on the planet Omicron Persei 7. The architects working with you to plan the base need to know the acceleration of a freely falling object at the surface of the planet in order to adequately design the structures. The Omicronians have told you flurg meter that the value is goP7 = = 7.29 and from your previous experience you know that both the Omicronians and your architects are terrible at unit conversion. Thus, it's up to you to do the unit conversion. Fortunately, you know the unit equality grom²¹ second² meter relationships: 5.24 flurg : 1 meter and 1 grom = 0.493 second. What is the value of gop7 in the units your architects will use, in second² VE ΑΣΦ SOP7 = ? meter second² " ?
An inventor wants to launch small satellites into orbit by launching them straight up from the surface of the earth, at very high speeds. a) With what speed should he launch the satellite if it is to have a speed of 500 m/s at a height of 400 km? Ignore air resistance. b) By what percentage would your answer be in error if you used a flat earth approximation? y2 400 km r R, + y2 Vy= 500 ta/s After: y =0 km = R. Before: Re Earth
Jupiter's moon lo has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject material as high as 500 km (or even higher) above the surface. Io has a mass of 8.93 x 1022 kg and a radius of 1821 km. ▾ Part A How high would this material go on earth if it were ejected with the same speed as on lo? (R = 6370 km, mg=5.96 x 10²4 kg) Express your answer with the appropriate units. F Template: 6. Symberg Undo redo Reset keyboard shortcuts Help expoñent subscript fraction dot scientific notation dejete Close keyboard Value Units Previous Answers Request Answer Submit
Deimos, a moon of Mars, is about 12 km in diameter with mass 2.0 × 10¹5 kg. Suppose you are stranded alone on Deimos and want to play a one-person game of baseball. You would be the pitcher, and you would be the batter! a. With what speed would you have to throw a baseball so that it would go into a circular orbit just above the surface and return to you so you could hit it? Do you think you could actually throw it at this speed? b. How long (in hours) after throwing the ball should you be ready to hit it? Would this be an action-packed baseball game?
A hypothetical planet has a mass 2.68 times that of Earth, but the same radius. What is g near its surface?Express your answer to three significant figures and include the appropriate units.
An object is dropped from an altitude of one Earth radius above Earth's surface. If M is the mass of Earth and R is its radius, the speed of the object just before it hits Earth is given by: GM R 0 GM 2R O GM V2R 0 GM VR 2GM R
After landing on an exoplanet, an astronaut constructs a simple pendulum of length 49 cm. The pendulum completes 89 full swing cycles in a time of 101 s. What is the magnitude of the gravitational acceleration in m/s2 on the exoplanet? Give your answer to 2 decimal places.