Bats use a process called echolocation to find their food. this involves giving out sound waves that hit possible prey or food. when the waves hit an object, they bounce back to the bat, allowing the bat to locate its prey. what type of wave interaction is echolocation?

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

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

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical