If a pitch from a moving vehicle sounds lower to a hearer, where is the vehicle in relation to the hearer? past the hearer before the hearer above the level of the hearer’s ear below the level of the hearer’s ear

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

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.

Energy flows from the producer level to the level. is called