A musical tone sounded on a pi has frequency of 410 Hz and a wavelength of 0.80 m. What is the speed of the sound we re?
A
170 m/s
В.
240 m/s
C.
328 m/s
D
513 m/s

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

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?