Answer:
your answer would be Sebaceous glands
Explanation:
these glands secrete oil/wax called sebum to lubricate and waterproof your skin. Hope this helps :)
Answer:
because the lumps are just baking soda covered with whatever watery substance you used.
Explanation:
so pretty much inside the lumps is just a bunch of baking soda
Average kinetic energy hope this helps!
Answer:
The frequencies are
Explanation:
From the question we are told that
The length of the ear canal is
The speed of sound is assumed to be
Now taking look at a typical ear canal we see that we assume it is a closed pipe
Now the fundamental harmonics for the pipe(ear canal) is mathematically represented as
substituting values
Also the the second harmonic for the pipe (ear canal) is mathematically represented as
substituting values
Given that sound would be loudest in the pipe at the frequency, it implies that the child will have an increased audible sensitivity at this frequencies
Answer:
c. The force on the charge at the origin is 0
Explanation:
We know by Coulomb's law:
Force between to two charges (here repulsive since both are +ve) sperated by distance 'r' in space is:
where:
= permittivity of free space
being the charges
In this case the product remains constant and also the distance "r" is constant which yields the force identical in each case.
Since identical charges are kept at all the four corners of a diamond shape and are equidistant from the origin where another charge of +5 μC is kept, all the charges from the vertices will apply equal repulsive force on the charge at origin cancelling out the force vectors which yields the force to be zero.