A group of engineers is building a parabolic satellite dish whose shape will be formed by rotating the curve y=ax2 about the y-axis. If the dish is to have a 6-foot diameter and a maximum depth of 2 feet, find the value of a and the surface area (in square feet) of the dish.

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?

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat