Physics, 03.12.2021 16:50 tsimonej12
Which of the following statements best describes a planetary system?
A planetary system is made of a central star with several planets and other objects orbiting around it. The planets are bound to their orbits by gravity. Our solar system is an example of a planetary system. There are other planetary systems in the universe.
A planetary system has an inner and outer star that balances the gravitational waves.
A planetary system is made of either a central star or a central planet with several planets and other objects or stars orbiting around it. The planets are bound to their orbits by gravity. Our solar system is an example of a planetary system. There are other planetary systems in the universe.
A planetary system is made of a central planet with outer planets are bound to their orbits by gravity. Our solar system is the only example of a planetary system. There are not any other planetary systems in the universe.
Answers: 1
Physics, 22.06.2019 08:30, kmwise19
If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.
Answers: 1
Physics, 22.06.2019 09:00, jaeana
Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy
Answers: 1
Physics, 22.06.2019 14:00, batmanmarie2004
Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?
Answers: 1
Which of the following statements best describes a planetary system?
A planetary system is made of...
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