While visiting Planet Physics, you toss a rock straight up at 15 m/s and catch it 2.4 s later. While you visit the surface, your cruise ship orbits at an altitude equal to the planet's radius every 210 min.

A planet travels in a circular orbit around a star. The radius of the circular orbit is 3.01×1011 m and the orbital period is 4.27 years.  What is the magnitude of the centripetal acceleration of the planet, in m/s2?

A piece of space debris is travelling in an elliptical orbit around a planet. At its closest point to the planet, the debris is travelling at 5000ms. When the debris is 10000km from the planet, it travels at 5000kmhr. How close does the debris get to the planet in its orbit?

The Sun orbits the center of the Milky Way galaxy once each 2.60 × 108 years, with a roughly circular orbit averaging 3.00 × 104 light years in radius. (A light year is the distance traveled by light in 1 y.)  a) Calculate the centripetal acceleration of the Sun in its galactic orbit in m/s2.   b) Calculate the average speed of the Sun in its galactic orbit in m/s.

A race car goes around a level, circular track with a diameter of 1.00 km at a constant speed of 100 km/h. What is the car's centripetal acceleration in m/s2?

You are watching a TV news program when they switch to some scenes taken aboard the space shuttle which circles 500 miles above the Earth once every 95 minutes.  To allow the audience to appreciate the distances involved, the announcer tells you that the radius of the Earth is about 4000 miles and the distance from the Earth to the Moon is about 250,000 miles.  When an astronaut drops her pen it floats in front of her face.  You immediately wonder how the acceleration of the dropped pen compares to the acceleration of a pen that you might drop here on the surface of the Earth.

If you are sitting at the equator on Earth, what would your average speed be knowing that the radius of the Earth is 6.37 x 106 m? What would your acceleration on Earth be?

Suppose an object is traveling in a circle of radius 10 m. if the object has a period of 6 s, what is its orbital speed (in m/s)?

The International Space Station orbits the Earth in a circle with a radius of approximately 6688185 m (which is only a few hundred miles above Earth's surface). At that distance, the acceleration due to gravity is only 8.87m / (s ^ 2) what is the velocity of the space station in this orbit? Your answer should be in units of m / s

A spy satellite is in circular orbit around Earth. It makes one revolution in 8.90 h. Mass of Earth is 5.974 × 1024 kg, radius of Earth is 6371 km and Gravitational constant G is = 6.674 × 10−11 N·m2/kg2. a. How high above Earth’s surface is the satellite? answer in km b. What is the satellite’s acceleration? answer in m/s^2