Sharks are generally negatively buoyant; the upward buoyant force is less than the weight force. This is one reason sharks tend

Answer: A) 2 B) 4 C) 1

Explanation:

The electric field associated with a parallel-plate capacitor is defined as:

A) E=Q/(L^2 * ε0); if we double the charge, the resultant electric field becomes twice as strong as its initial value.

B) Referring to the earlier electric field expression, if the plate size is doubled, the final electric field will be a quarter of the original strength.

C) If the separation distance between the plates is increased twofold, the resulting electric field remains unchanged from its initial state.

Answer:

a) The frequency is 3.191x10^11.

b) The type of radiation is microwave radiation.

c) The energy of one quantum of this radiation amounts to 1.32x10^-3ev.

Explanation:

For further details and calculations, please refer to the image below.

Answer:

The excess charge is

Explanation:

According to the question, we are informed that

The diameter is

The potential of the surface is

The radius of the sphere is

by plugging in given values

Where k is Coulomb's constant with a value

Based on the question stating there are no other charges, Q represents the excess charge

Therefore

inserting the numerical values