Patrol on her tv to make the sound louder or softer. which property of waves is sasha's volume control changing?

a) amplitude
b) wave period
c) wavelength
d) wave speed

Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. a-if a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b- what is the bearing's impact velocity?

A15 ohm resistor and a 25 ohm resistor are connected in parallel to a 60 volt battery. what is the power used by each device

Resistivity of a material is the resistance of a cm long sample of the material of 1 cm2 cross-sectional area.