39. A conducting sphere of radius 10 cm is given a charge 10 uC. The electric potential at a point distant 5cm from the centre is​

c)as speed changes, wavelength and frequency change.

everything changes!

object 2 because all the other ones are wrong

f=ma newton's second law 7x8=56n

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.