Three resistors are connected into the section of a circuit described by the diagram. at which labeled point or points of the circuit could a fourth resistor be added in series with r1?
a. point y point z
b. point x only
c. point y only
d. point z only

If a balloon is taken outside on a very cold day, what will occur?

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?

When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data? a. type of fertilizer b. amount of flowers c. amount of water d. number of days that the plants grew