Calculate the force at sea level that a boy of mass 50 kg exerts on a chair in which he is sitting.

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?

Argon, neon, and xenon are examples of

Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical