Abuoyant force acts in the opposite direction of gravity. according to archimedes’ principle, which of the following is true of an object completely submerged in water?

a. the magnitude of the upward buoyant force on the object is smaller than the weight of the fluid displaced by the object.
b. the magnitude of the upward buoyant force on the object is greater than the weight of the fluid displaced by the object.
c. the magnitude of the upward buoyant force on the object is equal to the weight of the fluid displaced by the object.
d. the object appears to weigh more than it does in air.

What is the scientific definition of energy that relates to work

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a.the kinetic energy increases.b.the kinetic energy decreases.c.the kinetic energy remains the same.d.the kinetic energy is always zero.

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field.it is in the opposite direction from that of the original external field.it has a direction determined entirely by the charge on its surface.it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0