the Depth of a sea is 6500 m and the speed of sound in water is . Calculate the time required for echo, when a sound wave is sent to bottom.) 1500 m/s ​

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.