Why is net force a vector sum a. all forces have direction and magnitude b. forces can only be attractive c. all forces are contact forces d. there are four fundamental forces

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?

Why are graphs useful when interpreting data

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of