To fill a child's inflatable wading pool, you use a garden hose with a radius of 3 cm. Water flows from this hose with a speed of 1 m/s. How long will it take to fill the pool to a depth of 10 cm if it is circular and has a radius of 2.9 m

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

When a pair of 10-n forces act on a box of candy, the net force on the box is a 20 n. b about 14 n. c zero. d any of the above depending on the directions of forces.

7types of electromagnetic waves from lowest to highest frequency