A deep-space probe, Kepler-186f Explorer, transmits a radio signal back to Earth from a distance of 4.8×1013 km4.8 \times 10^{13}\,\text{km}4.8×1013km.
Radio signals travel at the speed of light, which is 3.0×108 m/s3.0 \times 10^8\,\text{m/s}3.0×108m/s.
Calculate the time, in seconds, taken for the radio signal to reach Earth. Give your answer in standard form.
Practise AQA GCSE Physics Forces and motion with exam-style questions for Foundation and Higher tier. 83 questions covering Describing motion along a line, Forces, accelerations and Newton's Laws of motion, and Forces and braking, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.