Wavelength = wavespeed / frequency
0.5 meter = speed / 200 Hz
speed = 0.5m * 200 Hz
= 100 m/s
Solved
Answer:
#see details below.
Explanation:
-The net distance travelled would double because they had double the horizontal speed.
-The marbels would consequently spend about the same time in the air since vertical motion is not affected.
<span>21343 km / 150 km/hr = 142.29 hrs</span>
The correct answer is erosion.
Answer:
Sound can't travel in a vaccum.
Explanation:
Sound waves need a medium in order to travel (e.g. air, water, glass)
Since there was a vaccum between the glass the sound couldn't travel since vaccum's contain a very small amount of atoms.
