In which sound wave application are sound waves absorbed?
- echolocation
- ultrasonic cleaners
- ultrasound imaging

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.