This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
19. A car moved from town A to town B which are 45 km apart in 1 hour. At what speed was the car moving? Give the answer in SI unit. Step 1: Identify the given values. Distance (d) = 45 km Time (t) = 1 hour Step 2: Convert distance and time to SI units. 1 km = 1000 m d = 45 km × 1000 m1 km = 45000 m 1 hour = 60 minutes 1 minute = 60 seconds t = 1 hour × 60 minutes1 hour × 60 seconds1 minute = 3600 seconds Step 3: Calculate the speed using the formula v = (d)/(t). v = 45000 m3600 s v = 12.5 m/s The speed of the car in SI units is 12.5 m/s. 20. Differentiate between each of the following pairs of scientific skills. a) Prediction and conclusion A prediction is an educated guess about a future event or the outcome of an experiment, based on prior knowledge or observations. A conclusion* is a summary of the results of an experiment or investigation, stating whether the initial hypothesis was supported or rejected. b) Manipulative and communication Manipulative skills involve the ability to handle scientific equipment, materials, and tools safely and effectively during experiments or investigations. Communication skills* refer to the ability to clearly and effectively share scientific information, data, results, and ideas with others, both verbally and in writing. That's 2 down. 3 left today — send the next one.