An egg test dummy is fitted with a helmet and sealed in a plastic bag. The mass of
the egg, helmet, baggie, and paper clamp is 0.085 kg. The egg and its accessories
are attached to the swing and pulled back so that they are now 0.40 m above the
reference level. The egg is released and swings down to collide with the cement
block
a. Calculate the gravitational potential energy of the egg and its accessories when it
is 0.40 m above the reference level.
b. Determine the kinetic energy of the egg and its accessories when it collides with
the cement block. Explain how this energy is transformed in the collision.
c. Calculate the speed of the egg and its accessories the moment just before impact.

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

An isolated conducting spherical shell carries a positive charge. part a which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? electric potential inside the shell is constant and outside the shell is changing as 1/r2 both the electric potential and the electric field does change with r inside and outside the spherical shell electric potential inside and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is equal to zero electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) electric field inside is equal to zero and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is changing as 1/r electric field inside and outside the shell is changing as 1/r2 electric field inside is equal to zero and outside the shell is changing as 1/r2 electric field inside and outside the shell is zero electric field inside is constant and outside the shell is changing as 1/r

What is the role of lenses in microscopy?