calculate the frequency and time period of sound wave of 35 m wave length propagating at a speed of 3500m/s​

Frequency = 100 Hz

Time period = 0.01 sec

Explanation:

f= 3500/35 = 100

T = 1/f = .01

in this image, you can see solar radiation going through ocean water.

no image, but probably absorption

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.