The water flowing through a 2.1 cm (inside diameter) pipe flows out through three 1.3 cm pipes. (a) if the flow rates in the three smaller pipes are 24, 15, and 11 l/min, what is the flow rate in the 2.1 cm pipe? (b) what is the ratio of the speed of water in the 2.1 cm pipe to that in the pipe carrying 24 l/min?

You will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. (refer to the walk-through video to locate the online lab within the online textbook).

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?