Answer: The resultant displacement vector is 5.6km
Level of sound is related to intensity by this equation
given that
L = 85 dB
also we know that
now we have
By solving above equation
now above is the intensity due to two firecrackers and if we wish to find the sound level of one firecracker then we will find its half level intensity
now again by above formula
Solid carbon is an element in its solid state, not a mixture.
Carbon-dioxide gas is a compound in its gaseous state, not a mixture.
Liquid copper is an element in its liquid state, not a compound.
Copper will never dissolve in water, so copper in water is a mixture.
Answer:
The object will continue moving at 5 mph ( b )
Explanation:
For an object moving at a constant speed, the forces acting on it cancels each other out, or there are no external forces atall. hence its net force = 0 N . so the true statement is that the object will continue moving at its constant speed of 5 mph because its net force = 0 N
I would say because they have the same negative charge and they repel each other
