At a carnival, you can try to ring a bell by striking a target with a 11.7-kg hammer. In response, a 0.378-kg metal piece is sent upward toward the bell, which is 5.13 m above. Suppose that 18.0 percent of the hammer's kinetic energy is used to do the work of sending the metal piece upward. How fast must the hammer be moving when it strikes the target so that the bell just barely rings

4.25035202162 m/s

Explanation:

= Mass of hammer = 11.7 kg

= Mass of metal piece = 0.378 kg

g = Acceleration due to gravity =

h = Height = 5.13 m

Energy required to raise the bell

From the question we have

The speed of the metal piece is 4.25035202162 m/s

sonar - device which is used to find the submit submarines, sankalp ship. sonar waves consists of a transmitter and detector which are installed in the observation centre on board of a ship. the ultrasonic waves are sent into the sea at high frequency about 1000 khz in all direction.

wavelength variability is the right one