Particular stars called Cepheid variables allow astronomers to determine distance, and Hubble spotted one of these within M31 ...

A distance-time graph shows how the distance travelled by an object changes over time and can be used to calculate the speed of the object. A sloping line on a distance-time graph shows that the ...

Trajectory optimization (TO) aims to find a sequence of valid states while minimizing costs. However, its fine validation process is often costly due to computationally expensive collision searches, ...

Average speed = total distance ÷ total time = 1,700 m ÷ 50 s = 34 m/s. Look at this velocity-time graph and answer the question. This question requires an extended response, ie your answer must ...