The rotor of a "centrifuge" (originally at rest) is accelerated with an angular acceleration a for a time interval At, left at constant speed for a time interval Al, and then slowed down at a constant angular acceleration - until it stops rotating. What is the total angular displacement during this process

Natural forces that can alter ecosystems include seasons and climate changes. t or f

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?

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth