The mathematical and proportional relationship between mL and said us that is equivalent to 1mL.
If the density is considered as the amount of mass per unit volume we will have to
here,
m = mass
V = Volume
Replacing we have that
As we have that the density in g/mL is,
Answer:
T=0.0025s
Explanation:
Vibrations per second is the definition of the S.I. unit Hertz (Hz), which is a frequency. This means that 400 vibrations in one second refers to a frequency of 400Hz. We can get our period T in seconds by using the formula T=1/f, which for our case is:
T=1/f=1/400Hz=0.0025s
Ek means kinetic energy
m is mass (kg)
v is velocity (m/s)
Ek= 1/2 m v^2
= 0.5*80kg*(60m/s)^2
= 144 000 J