A spherical iron ball in. In diameter is coated with a layer of ice of uniform thickness. If the ice melts at a rate of how fast is the thickness of the ice decreasing when it is in. ​ thick? how fast is the outer surface area of ice​ decreasing?

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Answer 1

Answer:

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Explanation:


Related Questions

What does the underlined word mean in the following sentence? gracias por llamar. Talking visiting taking calling.

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According to the context, the underlined word means "calling", which is the action of exchanging information between two people through the use of a device such as the telephone.

Gracias por llamar.Translation: Thanks for calling.

What is calling?

It refers to the action of communicating with someone, which implies some type of exchange of information.

In the example, another person is thanked for having called, which implies the transmission and exchange of messages between a sender and a receiver.

Therefore, we can conclude that according to the context, the underlined word means "calling".

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Answer: D. Calling

Explanation: On Edge

Polystyrene has dielectric constant 2. 6 and dielectric strength 2. 0 × 107 v/m. A piece of polystyrene is used as a dielectric in a parallel-plate capacitor, filling the volume between the plates

Answers

The energy density of the polystyrene used as a dielectric is; 2.08 × 10^(7) J/m

What is the energy density?

We are given;

Dielectric constant; k_o = ε_r = 2.6

Dielectric strength = 2 × 10^(7) V/m

We are told that the electric field between the plates is 80% of the dielectric strength.

Thus;

Electric field; E = 80% × 2 × 10^(7)

E = 1.6 × 10^(7) V/m

Formula for the energy density is;

u = ½ε_r × E

u = ½ × 2.6 × 1.6 × 10^(7)

u = 2.08 × 10^(7) J/m

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