E = 1/2 kx^2
Make k the subject of formula.
Find the base units of E and x.
Replace back in the equation and find the base units of k.
See attachment file below.
Hope it helped!
The formula for getting the density of an object is
density = mass/volume = ρ = m/v
mass =42 kg
volume = 22m3
we will work on the equation directly because they are already in there SI units
density = 42 kg/22m3
density = 1.9090909090909
which if rounded can become 1.9 kg/m3
ans = the object's density is 1.9090909090909 kg/m3 or 1.9 kg/m3
Answer:
d = 0.343 m
Explanation:
Given that,
The speed of a longitudinal wave, v = 343 m/s
Your ear is capable of differentiating sounds that arrive at the ear just 1.00 milliseconds apart.
We need to find the minimum distance between two speakers that produce sounds that arrive at noticeably different times.
Let the distance be d. So,
![d=v\times t\\\\=343\times 10^{-3}\\\\=0.343\ m](https://tex.z-dn.net/?f=d%3Dv%5Ctimes%20t%5C%5C%5C%5C%3D343%5Ctimes%2010%5E%7B-3%7D%5C%5C%5C%5C%3D0.343%5C%20m)
So, the required distance is equal to 0.343 m.