A space probe moves at constant speed in a circular orbit around Venus.
| Quantity | Value |
|---|---|
| radius of Venus | 6100 km |
| orbital speed of the probe | 7.1 km/s |
| number of complete orbits | 12 |
| time for these orbits | 19.2 h |
Use circumference=2πr\text{circumference}=2\pi rcircumference=2πr.
Calculate the height of the probe above the surface of Venus.
Give your answer to two significant figures.
80 exam-style questions on Edexcel GCSE Physics 7.1 The Solar System and gravity, covering 7.1.1 Weight and g on different bodies in space, 7.1.2 The Solar System, 7.1.3 Changing ideas about the Solar System, 7.1.4 Orbits of moons, planets, comets and satellites, and 7.1.5 Gravity and orbital motion. Each one has a worked solution and a mark scheme showing where the marks go.